2009 Audi Q7 V12 TDI Technology

With the new bigger, longer and more uncut diesel engine under the hood it officially makes the new Q7 the most powerful diesel-powered passenger vehicle around. That big 6.0-liter engine generates a whopping 500 HP and an astonishing 757.5 lb-ft of torque. That means the new Q7 has a zero to 100 km/h (62.14 mph) time of just 5.5 seconds. On average, it requires just 11.9 liters of fuel per 100