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Renault Laguna

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Versions included here: General, GT
 
Despite of a shrinking market trend, Renault has no intention to withdraw from the European D-segment. However, to meet the promise by Carlos Ghosn that every Renault model must be profitable, the Laguna III project was developed under the close supervision of accountants. That means a development and production tooling budget of Euro 1 billion. That means a development time shortened to 32 months. That means it continues to use the platform underpinning the last generation. That means no Ford Mondeo / Volkswagen Passat-rivalling multi-link suspensions.

But Renault knows very well the market positioning of its Laguna. Instead of challenging Mondeo for driver appeal and Passat for sophistication, it continues to focus on comfort and practicality. At the same time, it tries to inject a sense of quality into the cabin. But let's look at the exterior first. This is the most conversative design from Patrick Le Quement for many years. To please the majority of buyers, he chose an inoffensive styling. Most motoring journalists criticized the front end as too bland, but compare with the odd-looking blackened nose of Laguna II, it seems perfectly acceptable to me. The detailed design of the front intake and headlights also possess a sense of quality. Well, European pedestrian safety law pushes the bonnet too high and ruins some of the sleekness, but I do admire Le Quement's decision not to follow rivals to adopt a V-shape bonnet as a solution. You know, more and more cars look similar to each other because they chose the same solution to the pedestrian safety law.

The best angle to view the new Laguna is from the side and from the rear. In this way, it looks sleek and coupe-like. Notice the low shoulder line and large glass area. Also pay attention to the lack of pronounced wheelarches. The Laguna appreciates simiplicity and hates excessive make-up. If you share the same philosophy, then this is the car for you.

If the exterior is a bit plain to you, then you must turn your attention to the interior, because this is the best area of Laguna III. Stylish, inviting and high quality, nothing else in the class can match it. The top surface of the dashboard is soft plastics with rich texture. The lower surface is coated with soft-touch paint. The sat-nav screen recessed handsomely into the dashboard. Either sides of it are aluminum or wood inserts, very classy.   Unlike German cars, the lighter colors used in this cabin and the airy ambience contributed by the large windows delivers a relaxing feel. Drop into the comfy part-Alcantara seats and you can easily find a comfortable driving position. There is plenty of head, leg and shoulder room up front. Rear seats also offer a lot of legroom, thanks to a compact rear suspension and slimmer front seat-back. The swoopy roofline punishes only the tallest guys, so most people would be satisfied with this cabin.

As Laguna III is derived from the Laguna II platform, there are nothing worth special attention. You already know it rides on MacPherson struts up front and cheap torsion-beam suspension at the rear. No adaptive damping. No aluminum suspension components. No "sport mode" button either. However, Renault did a good job to improve its NVH suppression and ride quality. This mean the Laguna rides exceptionally supple. Its cabin is as quiet as Mondeo's. In the handling side, naturally it fails to match Ford and Peugeot, but by stiffening the front and rear springs by 20% and 50% respectively and using thicker anti-roll bars, its has decent body control and reasonable resistance to understeer. The variable assistance electro-hydraulic steering gets quicker and higher precision, although it still lacks feel. Overall speaking, the Laguna III displays decent handling but its first priority is still comfort.

Most new cars weigh more than their predecessors. Laguna III is one of the exceptions. Although it measures 11 cm longer and 6 cm wider than the car it replaces, it weighs no more. (Renault even claims a 15 kg reduction in average) This is achieved by means of using more high-strength steel in the chassis, an aluminum engine cradle, lighter sound insulation materials and trim weight from each component, such as the hollow-head wheel screws that save 0.7 kg in total. This means it can adopt the same engines as the old car without sufferring in performance - a contrast to Ford Mondeo.

At launch, there are 2 petrol engines and 4 diesel engines: 140 hp 2.0 petrol, 170 hp 2.0 turbo petrol, 110 hp 1.5dCi and 2.0dCi in three states of tune (130 hp, 150 hp and 175 hp). Later on, Nissan's 3.5-liter petrol V6 and GM's 3.0-ltier turbo diesel V6 will join as the range topper. However, the best sellers are more likely to be 2.0dCi in 150 hp form. It provides plenty of punch and generally good refinement. 0-60 mph can be completed in less than 9 seconds while top speed should reach 130 mph. Not bad.

Although Laguna III is not going to be a new class leader, it is a contender every buyer should consider, especially if comfort and quality are your first priority. Reliability is likely to be a strong point too, thanks to an extensive testing program involving 120 prototypes and 6 million miles covered. Renault is so confidenent that it extends the warranty from the usual 60,000 miles in 3 years to 100,000 miles. If it can really deliver Toyota reliablity, then no matter how ordinary it looks or drives it won't find difficulties to sell large numbers.
 
The above report was last updated on 1 Sep 2007. All Rights Reserved.
     

Laguna GT with 4WS


4-wheel steering transforms the handling of Laguna

Laguna GT is an effort to bring some excitement to the otherwise civilized Laguna line. Powered by a 205hp 2.0-liter 16V turbo engine (or a 180hp / 295 lb-ft 2.0 turbo diesel) and mate with a 6-speed manual gearbox, the GT has enough power to do 0-60 mph in 7.5 seconds and top 144 mph. As long as you aware that it is not supposed to be a sports saloon, you will be pleased with its performance and engine flexibility.

However, the highlight of this car is its 4-wheel steering. 4WS was popular in Japanese cars from late 1980s to mid-1990s. Nissan Skyline, 300ZX, Mitsubishi Galant VR4, GTO / 3000GT VR4, Diamante / Sigma and Honda Prelude adopted this technology to improve handling. Following the introduction of electronic stability control, 4WS was seen as unnecessary costs thus was gradually abandoned. In 2005, Nissan reintroduced 4WS into its Infiniti M35/45 in the name “Rear Active Steer”. Later on it was expanded to Infiniti G37 and now finally to sister (or mother) company Renault.

Like the Nissan system, the 4WS system of Laguna GT is supplied by Japanese component maker Aisin (a subsidiary of Nissan). It employs electric motors to move the rear suspensions to facilitate rear-wheel steer. When the car is running below 38 mph, the rear wheels steer in opposite direction to the front’s by up to 3.5 degrees. This sharpens the steering action and reduces the turning circle to no more than that of Renault Clio ! When the car is running at higher speed, the rear wheels steer in the same direction as the front’s. This helps stabilize the car as it no longer needs big steering action, thus lane changing can be done much cleaner.

The theory is old and simple, so how well it works in real world depends very much on the software tuning. In Infinitis, people found the benefits of 4WS not especially obvious. In Laguna GT, Renault’s engineers did a better work to integrate the system into the chassis, thanks to the extensive tests conducted by Renault Sport’s engineers. The GT feels much more agile than the regular Laguna. The turn-in is sharper and more precise. Neutrality extends to higher cornering speed. Grip and stability are also improved. The 4WS enables good handling without resorting to stiff suspensions, thus the superb ride quality of Laguna remains untouched.

Is the Laguna GT a match for Mondeo or Mazda 6 ? Not yet, because it has a few weaknesses. First, the 4-wheel steering kills any chances of throttle steer. Second, the steering is still quite short of feel. Third, the undramatic body motion, smooth ride and smooth power delivery actually result in a somewhat boring driving experience. A competent car, yes. An exciting car, no.

  
The above report was last updated on 5 Jun 2008. All Rights Reserved.

Specifications

Model
Laguna 2.0
Laguna 2.0dCi 150
Laguna 2.0dCi 175
Layout
Front-engined, Fwd.
Front-engined, Fwd.
Front-engined, Fwd.
L / W / H / WB (mm)
4695 / 1811 / 1445 / 2756
4695 / 1811 / 1445 / 2756
4695 / 1811 / 1445 / 2756
Engine
Inline-4, dohc, 4v/cyl.
Inline-4, dohc, 4v/cyl,
diesel, CDI, VTG turbo.
Inline-4, dohc, 4v/cyl,
diesel, CDI, VTG turbo.
Capacity
1998 cc
1995 cc
1995 cc
Power
140 hp / 6000 rpm
150 hp / 4000 rpm
173 hp / 3750 rpm
Torque
144 lbft / 3750 rpm
251 lbft / 2000 rpm
280 lbft / 2000 rpm
Transmission
6M
6M
6M
Suspension (F/R)
strut / torsion-beam
strut / torsion-beam
strut / torsion-beam
Tyres (F/R)
All: 195/60 R16
All: 205/60 R16
All: 215/55 R16
Weight
1369 kg
1480 kg
1492 kg
Top speed
130 mph (c)
130 mph (c)
137 mph (c)
0-60 mph
8.6 sec (est)
9.3 sec*
8.2 sec (est)
0-100 mph
N/A
27.2 sec*
N/A
AutoZine's rating
Click Here
Click Here
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See illustration to spec.
Figures tested by: * Autocar
    
Model
Laguna GT 2.0 turbo
-
-
Layout
Front-engined, Fwd, 4ws.
-
-
L / W / H / WB (mm)
4695 / 1811 / 1445 / 2756
-
-
Engine
Inline-4, dohc, 4v/cyl, turbo.
-
-
Capacity
1998 cc
-
-
Power
205 hp / 5000 rpm
-
-
Torque
221 lbft / 3000 rpm
-
-
Transmission
6M
-
-
Suspension (F/R)
strut / torsion-beam
- -
Tyres (F/R)
All: 225/45 R18
- -
Weight
1467 kg
- -
Top speed
144 mph (c)
- -
0-60 mph
7.5 sec (est)
- -
0-100 mph
N/A
- -
AutoZine's rating
Click Here
- -
See illustration to spec.
Figures tested by: -
    

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