Infiniti G37 Coupe
Mileage: 20 mpg combined city/highway (approx.)
Starting price: $34,965
Infiniti estimates that the racy, redesigned 2008 G37 Coupe gets fractionally better mileage than the G35 model it replaces, even though its 330-hp, 3.7-liter V-6 is bigger and 55 hp more powerful than its 3.5-liter predecessor. New valve-control technology also means the new engine has lower emissions, the company said. A five-speed automatic transmission is standard.
