2012 Shelby GT500
2012 Shelby GT500
0 to 60: 4.3 seconds
Top speed: Limited to 155 mph

After an interval of 37 years, the Shelby nameplate returned to Ford on some specially-equipped Mustangs in 2007. This year, the GT500 gets an engine update with an all-new 5.4 liter aluminum motor that is 102 pounds lighter than the previous cast-iron engine and produces 550 horsepower. Is this a muscle car for environmentalists? With an EPA rating of 15 mpg city, 23 mph highway, the Shelby avoids the gas-guzzler tax. At $48,310, the Shelby is $8,500 more than the 2012 Boss 302 Mustang, which takes three-tenths of a second longer to get to 60 mph.


Last updated June 09 2011: 9:22 AM ET
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