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Nissan Skyline / Infiniti G35

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Versions included here: General,  G35 Coupe2006 MakeoverG37 Coupe
 
Old Skylines 

It is unbelievable that Skyline is 45 years old now and has entered the 11th generation. As I recall from my childhood memory, the first Skyline I saw was the 7th generation, sometime around 1985. It already had those trademark quad circular taillights, slim body profile and RB-series inline-6 engines that characterize the later Skyline R32, R33 and R34. These unique DNA and consistent evolution gave Skyline an unusual status in Japan. 

New Skyline, or Infiniti G35? 

Unfortunately, the new generation Skyline V35 (debuted in June 2001) is not a real Skyline. Infiniti G35 - its alternative name - is perhaps more appropriate to reflect its nature. In fact, when Le Cost Killer Carlos Ghosn arrived Nissan in 1998, he found the Skyline was making loss because it was not sold in sufficient number while sharing little parts with other models. Therefore he decided to combine the Skyline platform with Gloria, Cedric, Stagea (estate version of Skyline), 350Z and GT-R (to be split from Skyline). In this way, the Skyline lost its unique platform and inline-6 engine. The latter is replaced by a more commonly used V6. 

Worse still is that Ghosn converted the Skyline into a BMW-style saloon. That is why I said Infiniti G35 is actually a more suitable name. Fans will never approve such conversion, but Ghosn cares more about money. The advantage of a BMW-style Skyline is that it appeals to more customers and can be sold in overseas for the first time in its 45 years history. 

For North American market, Nissan named it as Infiniti G35. Basically that is equivalent to the top-of-the-range Skyline sold in Japan. Why not simply call it Infiniti G35 in Japan? because Nissan never sells the brand Infiniti at home, just like Lexus never exists in Japan. 

New styling and packaging 

From outside, the new Skyline looks really like a Germanic premium car, thanks to the smooth, fat and self-restrained profile. It looks especially handsome from rear quarter (see picture). Nevertheless, I am disappointed with its LED taillights - why not preserve the traditional quad-circular taillights which are far sexier?  

Anyway, the Skyline body functions flawlessly. It achieves an outstanding drag coefficient of 0.27 and generates just a little lift at rear. With optional aero pack, drag even drops to 0.26 while lift is completely eliminated.  

Price-wise, the new Skyline competes directly with BMW 3-series. Size-wise, it runs closer to the 5-series, having a 30mm longer wheelbase but shorter overall length. This implies a very sporty profile with minimal overhangs.  

However, long wheelbase seemed fail to bring higher space efficiency, because rear cabin is still smaller than the 5-series, although well ahead of the cramped 3-series. That said, the Skyline can sit 4 in comfort but not feeling luxurious. Worse is the execution - the dashboard and console look so dull, the plastics, leather and trimming feel so cheap by German car standard, the fit and finish doesn’t worth the label "made in Japan". This is a typical Le Cost Killer interior! 

New engine and performance 

Let us concentrate on the flagship (most powerful) Skyline 350GT and equivalent Infiniti G35. No turbocharging anymore, they rely on a big normally aspirated V6 displacing 3.5 litres, further helped by continuous variable valve timing (VVT) and variable muffler. The end result is 260 horsepower (or 272hp for Japanese version) and 260lbft of torque, beating Acura TL Type S as the most powerful car in class. 

Twist the key and you will find the new engine instantly responsive. Although the automatic gearbox absorbs some of the power, the tremendous torque still provide strong acceleration - 0-60mph can be done in 6.2 seconds. Moreover, the V6 is apparently smoother and quieter than the outgoing inline-6. Read the spec. and you will know why - this is the well-known VQ35DE, famous for refinement and lightweight aluminum construction. Basically the same engine as those serving Altima, Maxima and 350Z, just with different state of tune. 

Apart from VQ35DE, Japanese Skyline also offers VQ25DD and VQ30DD, displacing 2.5 and 3.0 litres respectively. They are even more efficient than the bigger engine, generating 212hp and 256hp respectively, thanks to the use of direct fuel injection and electric continuous VVT. 

However, the best version of Skyline is undoubtedly 350GT-8. This Japan-only model mates the 3.5-litre engine with a state-of-the-art Extroid CVT gearbox offering a sequential manual mode with 8 ratios. Yes, 8-speed, really that mad! perhaps more than a good driver can cope with, but shifting via the steering column-mounted paddles like Ferrari must be tempting. The stepless automatic mode is smooth yet reasonably responsive. The Extroid CVT uses solid rollers instead of steel belt as means of transmission and ratio variation, no wonder it handles the torquey V6 with ease.  

New chassis and handling 

One of the benefits of switching to V6 is better chassis balance. A V6 is much shorter than an inline-6, so it can be positioned rearward. In addition to the long wheelbase design, more than half of the engine locates behind the front axle, therefore Nissan calls it as "front-mid engine". Besides, the lightweight of the aluminum VQ engine also help improving weight distribution. The end result is 52:48 front to rear, 2 points better than the old Skyline. 

Apart from a balanced chassis, the new Skyline has all the right ingredients for a good sporty saloon, such as rear-wheel drive and all round multi-link suspensions. To improve ride quality, suspension links are even made of forged aluminum. 

That's the theory. In reality, the new Skyline never feels as sporty as it should be. Most journalists reported good body control and high-speed stability, responsive steering and strong brakes. At 80% effort, the Skyline feels really like an alternative to BMW 3-series. However, enter twisty roads and you will find it lacks the precise control and feeling of BMW. Its steering is too light and oversensitive to input, making the car harder to place accurately in tight turns. The brakes, though powerful, is far from progressive. This works OK in normal driving, but once you attack corners, you will find it difficult to apply the exact amount of braking force you need. In BMW and Mercedes, all controls work in harmony with human to get the job done in style. 

Worse is that the so-called well-balanced chassis does not feel that way. In hard cornering, you will feel the car as large as it is (while a good driver's car should feel smaller than it is). It understeers early, refuses to corner as hard and as accurate as real drivers want. The use of narrow and high-profile tyres (215/55) may be one of the reasons. 

In the end, all road testers agreed that the new Skyline or Infiniti G35 is not in the league of BMW 3-series, Audi A4 and Mercedes C-class. It might have the right ingredients, but lack of fine tuning (and perhaps some expensive critical components) to get the last 20 percent done. Disappointingly, while the old Skyline spirit has lost, the new direction is not successful yet. I will miss the real Skyline (1957-2001) forever. 
 

The above report was last updated on 11 July 2002. All Rights Reserved.
 

Skyline Coupe / Infiniti G35 Coupe

The Coupe version of Skyline / Infiniti G35 retains the same long wheelbase but all sheet metals were changed. Compare with the sedan, it has wider tracks, lower roofline and the overall profile is far sleeker. The conversion is very successful, making it in my eyes the most beautiful mid-price coupe since Peugeot 406 Coupe. Attractive styling is perhaps its biggest advantage. 

The Coupe's 3.5 V6 is tuned to deliver 280hp instead of the sedan's 260hp, torque is also up 10 lbft to 270 lbft. We expected the sleeker body slip into airflow more efficiently, but in fact the Coupe's drag coefficient of 0.28 (with spoiler) is 0.02 up from the sedan. We also expected a lower kerb weight, but in fact the Coupe is 40kg heavier than the sedan despite the deletion of 2 doors and reduction of rear accommodation. Fortunately, it has a 6-speed manual gearbox from the 350Z, thus 0-60mph acceleration improves to 6.0 sec. That's quicker than its benchmark rival BMW 330Ci.  

Like the V6 engine, the tuning of suspensions is mid-way between the Skyline sedan and 350Z. It's firm without harsh. Handling is therefore sporty without losing comfort, although 330Ci will beat it in both aspects. Like the sedan and 350Z, it understeers at the limit. With optional Brembo brakes, stopping power is remarkable.  

In terms of comfort, Skyline Coupe is not a real 4-seater like Peugeot 406 Coupe. Long wheelbase surely provide abundance of legroom to the rear passengers, but headroom is limited by the steeply raked rear screen like many coupes. We are also disappointed by the looks and feel of the interior design. Basically, it has the same bland dashboard as the sedan, just injected some alloy effect (actually cheap plastic panels). The sharp contrast between the exterior and interior styling and finish is a let down. 

BMW 330Ci might be smaller and a little slower, but it is more exciting to drive, more refined to travel in and more satisfying to own thanks to its premium build quality. Good look is not enough to persuade us switching to the Nissan party.  
 

The above report was last updated on 10 Feb 2003. All Rights Reserved.

2006 Makeover

4 years after launch, Nissan Skyline / Infiniti G35 has received a major mid-life makeover. This makeover concentrates on 3 areas: 1) power, 2) handling and 3) interior quality. The objective is to close the gap from class-leader BMW 3-Series.

Outside, the Skyline / G35 is not a big departure from the outgoing car. The facelifted nose and tail are more flowing and more dynamic, but its organic shape started looking tired. It lacks the elegance of Audi and Lexus. Even compare with the strange-looking 3-Series, it feels rather bulky. Size-wise, yes, the Nissan remains to be the largest in its class, thanks to the 2850mm wheelbase (3-Series: 2760mm; A4: 2648mm; IS350: 2730mm), but its interior volume is not used very efficiently. In fact, rear headroom has been reduced slightly owing to a faster roofline. Passengers over 6 feet won't fit there comfortably.

Our biggest complaint for the old car was the horribly cheap interior packaging. In the new car, Nissan has partly sorted out the problem by redesigning the whole dashboard and console and by using higher grade plastics. Still, this is not a beautiful design, and there is still a feeling of built to costs. To match the aforementioned rivals, it should employ even higher quality plastics and switch gears, and fit them more solidly in place. Noise insulation and ride quality over small imperfections also need to be improved.

Okay, refinement is not the strongest suit of Skyline / G35, old or new. Its trump card is driver appeal instead. This must thanks to the strong engine and strong chassis. Nissan has updated the VQ series engine to the 4th generation. Now codenamed VQ35HR – in which the HR represents High Revolution – it can spin to 7500 rpm, up from 6600 rpm. This is contributed by the addition of exhaust VVT (continuous type and actuated by electromagnetic like Lexus LS460), smoother exhaust and higher 10.6:1 compression made possible by improved knock control and water cooling. The result is 306 horsepower at 6800 rpm, same value as Lexus IS350, and a max torque of 268 lbft available at 5200 rpm. The latter is not as brilliant as Lexus though. Infiniti claims lower fuel consumption than the outgoing car, but you won't expect much improvement because this engine still comes without direct injection.

However, the power and refinement of the VQ is already impressive enough. On the one hand it can propel the car from rest to 60 mph in a little more than 5 seconds. On the other hand it spins smoothly up to redline, even more so than the old VQ, thanks to a strengthened engine block. Mating with the V6 is either a 5-speed paddle-shift automatic or a 6-speed manual (for Infiniti G35 Sport only), both have satisfyingly smooth gearshift.

The chassis has received 40 percent increase of rigidity thanks to more spot welding and laser seam welding. The stiffer chassis allows firmer spring and damper setting, especially in G35 Sport. Front and rear tracks have been widened slightly. Front to rear balance remains 53:47, but the engine is now mounted 15mm lower. New viscous coupling limited slip differential helps hard cornering. Besides, the Skyline has 4WS (4-wheel-steering) returned as optional equipment, which steer the rear wheels by up to 1 degree according to steering input and speed. However, the benefit of 4WS is not obvious according to road testers.

In terms of handling, 3-Series is still safely at the top, but Skyline / G35 has become a close second. It can easily outgun Lexus and Audi. We won't have opportunity to see it testing against Alfa Romeo 159 until at least 2009, but it seems that will be a close fight. One thing might not favour the Nissan is: its speed-sensitive power steering continues to feel numb, and the change of weighting is slow and artificial.

As a driver's car, Skyline / G35 has come very close to the top level. What a pity the tight cost control of Nissan prevents it from feeling like a really premium car. The mid-life makeover is successful, but it won't change the "second division" image of the car.
 
The above report was last updated on 4 Oct 2006. All Rights Reserved.
 

Skyline Coupe / Infiniti G37 Coupe

When Nissan introduced the pre-production G37 Coupe to the press in March 2007, it brought a BMW 335i Coupe for them to compare side by side on a test track. Until then, 335i was the benchmark of the class and nobody else could come close to its perfect combination of performance, handling and refinement. Apparently, Nissan was confident to beat the great BMW, otherwise it would not have brought the car there. In the end of the day, none of the American journalists came home without praising the G37 and declaring it beating the 335i.

What made Nissan so confident ? This starts from the handsome design, extends to the 36 percent-stiffer chassis (compare with the old G35 Coupe) and the new VQ37VHR engine. The latter is definitely the highlight of the car. Compare with the VQ35HR used in the G35 sedan, VQ37VHR added not only 200 cc of capacity through longer stroke but also a higher compression ratio (11.0:1) and a continuously variable intake valve lift system called VVEL (Variable Valve Event and Lift). The latter sounds like BMW's Valvetronic, but its mechanism is significantly lighter, smaller, involves less parts and therefore allows the engine to rev to as high as 7500 rpm, equaling the shorter-stroke VQ35HR. It produces 330 horsepower at 7000 rpm, 24hp more than the G35 sedan. Strangely, the max torque barely increases from 268 lbft to 270 lbft at 5200 rpm despite of the increased stroke, implying the engine is tuned for high-end power.

On paper, the Infiniti has everything to beat the BMW. Its chassis is lower and wider, suggesting better handling. If that's not enough, it has bigger brakes inside the larger 19-inch wheels, a limited slip differential and optional electronic-controlled 4-wheel-steering (4WAS). It has an advantage of 30 horsepower and, ridiculously, its high-revving naturally aspirated V6 conforms to the traditional philosophy of BMW more than the twin-turbo six of 335i. In other words, more BMW than BMW.

Unfortunately, when journalists finally drove the production car in late June, their findings were very different from the first impression. This time most people found it didn't really match 335i Coupe. First of all, the BMW's twin-turbo engine feels far more powerful in real world, thanks to its superior bottom end and mid-range torque. VQ37VHR might deliver a little more horses at the top end, but it is neither as smooth nor as melodic as the BMW engine. Couples to the fact that G37 Coupe carries some 140 kilograms more than its rival, it takes an extra 0.4 seconds to do 0-60 mph and as much as 1.1 seconds more to do 0-100 mph sprint, according to the measurement conducted by Car and Driver. In short, 335i knocks out G37 in engine and performance convincingly.

Other aspects are similar. While it matches 335i for body control and comes very close in ride quality, most of its controls lack the fine polishing of BMW – the steering feels numb, the gearshift is a little notchy, the clutch too heavy and abrupt, the brake feels vague and braking performance is no where as good as the lighter BMW. These qualities separate a fine car from a great car. Turn into corners, the G37 understeers a little more than the BMW as well as its predecessor G35 Coupe. It becomes more civilized and, inevitably, delivers less fun.

Can the optional 4WAS system save it from losing ? Sadly, Nissan's engineers forgot how to make a 4-wheel-steering system work like the old Skyline GT-R. In the G37, the system actually introduces even more understeer and makes the steering more unpredictable. In other words, it is a waste of money.

Talking about money, the G37 is cheaper than 335i Coupe, of course, but the latter's superior dynamics, precision, refinement, cabin space and build quality worth even more money. In isolation, G37 is a fine coupe, but to beat the Bimmer it still has a long long way to go.

What we can learn from this lesson is never to trust a car maker who generously offers a rival product for comparison, especially on a test track selected by the car maker. A fair comparison should be conducted on a variety of roads and on production cars without "special treatment". You know what I mean.
 
The above report was last updated on 5 Jul 2007. All Rights Reserved.

Specifications

Model
Skyline 300GT (old)
Infiniti G35 
(Skyline 350GT-8) (old)
Infiniti G35 Coupe (old)
Layout
Front-engined, Rwd
Front-engined, Rwd
Front-engined, Rwd
L / W / H / WB (mm)
4675 / 1750 / 1470 / 2850
4675 / 1750 / 1470 / 2850
4628 / 1816 / 1392 / 2850
Engine
V6, dohc, 4v/cyl, VVT,
DI.
V6, dohc, 4v/cyl, VVT,
var exhaust.
V6, dohc, 4v/cyl, VVT,
var exhaust.
Capacity
2987 cc
3498 cc
3498 cc
Power
256 hp
260 hp (272 hp)
280 hp
Torque
239 lbft
260 lbft
270 lbft
Transmission
5A
5A (CVT-8M)
6M
Suspension (F/R)
All: multi-link
All: multi-link
All: multi-link
Tyres (F/R)
All: 215/55 VR17
All: 215/55 VR17
225/45WR18 / 245/45WR18
Weight
1490 kg
1520 kg (1550 kg)
1560 kg
Top speed
N/A
N/A
N/A
0-60 mph
N/A
6.2 sec*
6.0 sec**
0-100 mph
N/A
16.5 sec*
15.0 sec**
AutoZine's rating
No longer on sale
No longer on sale
No longer on sale
See illustration to spec.
Figures tested by: * R&T,  ** C&D
 
Model
Infiniti G35 Sport (new)
Infiniti G37 Coupe Sport
-
Layout
Front-engined, Rwd
Front-engined, Rwd
-
L / W / H / WB (mm)
4750 / 1773 / 1453 / 2850
4650 / 1824 / 1395 / 2850
-
Engine
V6, dohc, 4v/cyl, VVT.
V6, dohc, 4v/cyl, VVT+L
-
Capacity
3498 cc
3696 cc
-
Power
306 hp
330 hp
-
Torque
268 lbft
270 lbft
-
Transmission
6M
6M
-
Suspension (F/R)
Multi-link / multi-link
Multi-link / multi-link
-
Tyres (F/R)
225/50WR18 / 245/45WR18
225/45WR19 / 245/40WR19
-
Weight
1625 kg
1663 kg
-
Top speed
155 mph (limited)
155 mph (limited)
-
0-60 mph
5.5 sec* / 5.4 sec**
5.3 sec*
-
0-100 mph
13.8 sec* / 13.5 sec**
13.2 sec*
-
AutoZine's rating
Click Here
Click Here
-
See illustration to spec.
Figures tested by: * C&D,  ** R&T
 

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