Let's start from the exterior, this is where the Sunny, Sentra and Almera differ the most, because they were penned by different studios. The Sunny, unsurprisingly, was the work of domestic designers. This could be reflected by its conservative and rather straightforward style. The Sentra was styled by American stylists in the San Diego studio. Sadly, it also looks dull, unlike a product of the new millennium, although there is a special grille at the front bumper. Comparatively, if not absolutely, the work of the European studio at Germany did the best to the Almera's styling. It's unique, modern and reflects the confidence the designers have, unlike the Japanese and American colleagues who compromised their designs for the requirements of Mr. Average and Mrs. Robinson. In particular, in the hatchback form you'll see a special, wave-shape roofline which drops and then rise towards the tailgate, forming an inherent roof spoiler. In sedan form, the Almera looks rounder and bolder than the Sentra, delivering a safe yet funny feel. Interestingly, it looks quite like parent company's Renault Megane.  
 

However, I suspect if the styling were responsible by Nissan's studio in Brussel, it would have been a world class beauty. Brussel has a good track record recently, especially is the Tino MPV and last year's Kyxx concept car. 

Despite of different clothes, the three sister cars have virtually the same floorpan. Even the American Sentra has to share the same width and 2535 mm wheelbase as the other two, no wonder people said it is not as roomy as the Civic, let alone the class-leading Focus. The unusually short wheelbase also implies that the platform is derived from the previous generation Sunny / Sentra / Almera. Nissan didn't increase all the essential dimensions other than height. Although it always claim the multi-link beam axle rear suspension is extremely space-saving, I found my 5 ft 10 body was quite compromised in the previous Sunny which has the same wheelbase. Therefore although the new car has higher roof, hence a relatively upright rear seat, space at the rear is still hardly impressive. 

Suspension is virtually unchanged from last generation. Nevertheless, chassis has gained 30% in torsional stiffness by means of strengthening including a cross-member at the floorpan, thus improve refinement in the price of weight penalty. It's generally a few dozens of kg heavier, not a good thing because the progress of powertrain is tiny. In some cases, like the domestic best-selling 1.5 model, even has the power output tuned down (accompany with compression ratio) to cope with stricter emission regulations. Luckily, there is a new 1.8-litre direct-injection engine (130hp) for compensation. 

Instead of direct-injection, European 1.8 gets a simple variable-valve timing at the intake valves to boost flexibility. That results in a peak torque of 117 lbft occurring from 2,400 rpm continuously to 4,800 rpm. Power, on the other hand, is as modest as 114 hp. Worst of all, this is already the range-topping engine for Almera - no 143 hp GTi anymore; no any 2-litre engine up to this moment. I think the Almera deserve at least Sentra's 1.8, which received higher state of tune, hence 126 hp and 129 lbft. It would have been even better if it gets Sentra SE's 145 hp 2-litre engine with dual variable-volume exhaust. 

But Sentra also has its problems. Although it gained front tower bar as standard and a bit more power than before, its new found weight prevent it from feeling as "pocket-rocket" as the previous SE-R or even the 2-door 200SX (not the Silvia). In short, both Sentra and Almera are actually slower than their equivalent predecessors. 

In handling department, Almera's suspension tuning is very well done. Benefited by stiffer chassis, the Almera provides good balance between handling and ride. The simple multi-link beam axle has overcome its shortcomings in dealing with short / sharp bumps (unless in aggressive optional 205/50 WR16 rubbers), providing generally supple ride quality. Body control is good and fluent, very easy to handle. Slick gearchange and progressive clutch further enhance the sense of confidence. Steering weighs good and delivers decent feel, but not as sharp as keen drivers like.  

In contrast, refinement and perceived quality are the biggest faults for all these cars. The 1.8 engine is not as smooth as Japanese norm, and makes a lot of noise. There's vibration transmitted to the pedals too. Wind noise suppression is less impressive as well. 
  

In the VW-dominating era, nearly all other cars' dashboards can be criticised as cheap. Still, I found the Focus and Civic's looking more expensive than the Nissan compacts. They are more stylish as well, especially is the former. Nissan's Germany studio, which responsible for the interior design for both Almera and Sentra, didn't inject sufficient style to compensate the lack of high quality plastic. The dark, shiny, hard-touch dashboard adds nothing to showroom appeal. 

Being produced in Japan, Mexico and UK respectively, the Sunny, Sentra and Almera represent the same philosophy via different interpretations. This philosophy is: cost reduction. Unluckily, before customers discover that from the price tag, they have already perceived that. 
 

Sentra CA - the cleanest petrol car

Nissan said the car is eight times cleaner than ULEV cars. It emits one-fourth of unburned hydrocarbon (HC) and one-tenth of oxides of nitrogen (NOx). To achieve that, it employs swirl control which reduce emission of hydrocarbon in combustion, hydrocarbon trap catalyst for trapping cold-start particle emission, double-wall exhaust manifold to reduce warm up time for catalyst and lastly, 3 quick warm-up catalytic converters. Otherwise the car is identical to a standard 1.8-litre Sentra which has been launched, except a few horsepower lost in the exhaust system. The engine produces 122hp and 122 lbft. 

Not only produce little pollutants, the Sentra CA actually clean the ground-level ozone - which leads to smog - by its radiator coated with a special material which converts ozone to oxygen.  

However, the Sentra has nothing to do with green-house gas emission. Its large engine capacity result in fuel consumption as well as CO2 emission similar to ordinary cars. Therefore fuel cell cars or hybrid cars are still the long term solution to our environmental problems. 
 

Sentra SE-R Spec V

Though having similar performance to Civic Type R, this car is built according to a completely different philosophy. The engine is a long stroke 2.5-litre four-pot, so big that it requires twin-balancer shaft to counter vibration. As in Primera and Altima, this alloy engine has continuous VVT, but it gains a sporting variable exhaust to enable 180 hp and 180 lbft. Despite of Helical LSD, wheelspin and torque steer are not thoroughly sorted out.  

The 6-speeder also comes from Primera, working with the torquey engine ensures it sprint to 60mph under 7 seconds. The stiffened suspensions ruin ride quality in exchange of body control. However, the Sentra is still no driver's car because of uninspiring steering and rubbery shift action.  

And that look is perhaps the biggest obstacle from loving it. 
 

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