The use of twin-turbocharger is a question of both efficiency and packaging. A small engine is of course better to use a single turbo, because it does not produce sufficient exhaust gas to drive 2 ...

Manual transmission might be almost dead in the USA – only 4 percent of all new cars sold there are equipped with stick-shift – but in the rest of the world it is still the choice of the majority. For ...

A refined engine should be smooth running, free of vibration and quiet. These qualities also help the engine to spin freer at high rpm, lifting red line hence power output. Engine smoothness depends ...

As shown in the picture, straight-6 engine is simply a pair of 3-cylinder engines mated together symmetrically, thus piston 1 is always in the same position as piston 6, piston 2 the same as piston 5.

Grew up with cars in the 1980s, I have special feeling for many cars existed in that period. One of my favourite performance cars was the 1986 Ford Sierra RS Cosworth. In our first encounter in 1987, ...

It would be good to have a linear, predictable steering response, but sometimes varying the steering ratio could enhance the driving experience. For example, when cruising on highway we want the ...

When it comes to traction, 4 wheels are definitely better than 2. Since the very beginning of automotive history, many engineers tried the idea of 4-wheel drive. However, successful applications had ...

Continuously Variable Transmission is getting more and more popular on small to mid-size cars, eating the market share of manual and low-end automatic transmissions. In 2015, the world produced 11.3 ...

To repeat an icon is not easy. To reinvent an icon is even harder. Renault succeeds in doing so. Few small cars have so much visual appeal. The reborn Mini has it, so is Fiat 500. They are successful ...

First introduced by Mercedes 300SL in 1954, tuned intake manifold is not exactly a new technology. It is discussed here just because its principle is useful to our further study of variable intake ...

Opel Speedster (or Vauxhall VX220 in other words) is built and developed entirely by Lotus based on Elise. Production takes place in the same production line as Elise in Hethel which has been enlarged ...

Whenever I mention Subaru, the images of the first generation Impreza WRX always flash in my mind. Undoubtedly, the first generation WRX was the symbol of Subaru as well as one of the iconic cars in ...