Porsche Cayenne Diesel

The Porsche Cayenne Diesel uses a 3.0-liter V-6 -- sourced from the upcoming Audi Q7 TDI -- that produces 240 hp and over 405 lb-ft of torque. Even more impressive than the torque figure is the average fuel economy: Porsche cites consumption at 9.3 liters per 100 kilometers, which should translate to 25 mpg, and a 0-62 time of 8.3 seconds. Pricing for the European model begins at 47,250 euro (equal to $60,000 at today's exchange rates), with plans still underway for its introduction to other markets outside of the EU, which, of course, could mean the U.S.