Source: Fuji Heavy Industries

In recent years, being environmentally friendly has become an important feature for new passenger cars. Diesel cars, which produce lower CO2 emissions, dominate new car sales in Europe, taking a 50% share of the market.

It was for this reason that in 2008, Subaru launched the Euro 4-compliant boxer diesel Legacy. Employing a common-rail system and a variable nozzletype turbocharger, the Subaru boxer diesel offers output performance and fuel economy that are well suited to an AWD vehicle platform.

The 2008 boxer diesel won praise from consumers, the media and the industry alike. However, the development concept of the second generation boxer diesel was to satisfy Euro 5 regulations while maintaining the engine output performance, fuel economy, and NVH characteristics of the Euro 4-compliant boxer diesel.

For Euro 5, the NOx and PM elements must be reduced by at least 30% and 80% respectively from the Euro 4 levels. To realize this, the development team reduced PM by improving the DPF that is employed in the Forester and Impreza models, and reduced NOx by developing advanced combustion control.

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Stabilizer bars are part of a cars suspension system. They are sometimes also called anti-sway bars or anti-roll bars or sway bars. Their purpose in life is to try to keep the car's body from "rolling" in a turn.

Think about what happens to a car in a turn. If you are inside the car, you know that your body gets pulled toward the outside of the turn. The same thing is happening to all the parts of the car. So the part of the car on the outside of the turn gets pushed down toward the road and the part of the car on the inside of the turn rises up. In other words, the body of the car "rolls" 10 or 20 or 30 degrees toward the outside of the turn. If you take a turn fast enough, the tyres on the inside of the turn can actually rise off the road.

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