Audi A8 TDI vs Gasser

Insideline pits the A8 TDI against the A8 Gas.

Consider those for a moment. The diesel-powered Audi A8 4.2 TDI is not only more economical than the gasoline-powered A8 4.2, it also produces fewer greenhouse gases and, most importantly for readers of this Web site, it's also significantly quicker.

For the past few years, while the U.S. has been bemoaning ever increasing gas prices, the Europeans have been experiencing a quiet, bloodless diesel revolution. The introduction of multivalve, common-rail direct-injection and pre-ignition technology has transformed the diesel engine from a noisy agricultural workhorse into an ultrarefined, economical powerhouse worthy of the finest performance and luxury cars. Across Europe, more than a third of new cars now stop at the black pump and in some countries, diesel cars outsell petrol.