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10 Surprisingly Fuel-efficient Sports Cars

Infiniti G37

The Infiniti G37 is the older, richer and slightly heavier cousin of the Nissan 370Z. They both share the same 3.7-liter engine, but the Infiniti drops two horses off the power and adds some weight. With a seven-speed automatic transmission the G37 can go from 0 to 60 miles per hour (0 to 96.6 kilometers per hour) in just 5.8 seconds -- and it still gets 19 miles per gallon in the city and 27 miles per gallon on the highway (8.1/11.5 kilometers per liter). Not too shabby if you're looking for a bit more luxury than the Z-car but still love Nissan's 3.7-liter V-6 engine.