This car combines two things that nobody buys in America anymore, smarts and TDI engines. But that doesn't mean we don't like the little dragster. The versatility of the 1.9 TDI engine is renowned ...

When one thinks of a smart fortwo being present at the drag strip, the idea of a maintenance vehicle is the first that comes to mind. And that's because the tiny vehicle was never a truly quick ...

According to chaos theory, small changes within a given system can lead to unexpected, radical results. The famous example is the butterfly in one part of the world flapping its wings, causing weather ...

Audi is celebrating 25 years of the TDI diesel engine, which has given the Ingolstadt-based automaker success both on the road and on the track. Audi has sold approximately 7.5 million cars equipped ...

Diesel engines have long gotten a bad rap in the U.S., but that's a tired story. We all know it, some of us even believe it, but so far not much of the U.S. populace has been exposed to a proper ...