cylinder deactivation

Balancing power and economy is a tricky business, especially for Mercedes-Benz and its in-house performance division, AMG. On the one hand, a buyer's conscience demands improved fuel economy and reduced emissions. But on the other, AMG knows what its customers really want is pure, unadulterated ...

General Motors Vice Chairman Bob Lutz was bitten by the blogging bug again yesterday and uploaded a post to the company's FastLane Blog. Despite his hectic schedule the Chairman got some seat time in a pair of new GM products and wanted the rest of us to know he was impressed. The two cars in ...

General Motors announced that it will be introducing 19 -- yes, 19 -- new engines and powertrains for the 2007 model year. The powerplants span the gamut of technologies available today and include hybrids, traditional gasoline-powered engines, ethanol powerplants and everything in ...