America's fastest cars

#10 Jeep Grand Cherokee SRT8 (tie)
Base price: $40,800
Engine: 6.1-liter, 420-hp V-8
Top speed: 155 miles per hour#10 Ford Shelby GT500 (tie)
Base price: $41,000 (estimated)
Engine: Supercharged, 5.4-liter, 500-hp V-8
Top speed: 155 miles per hour#10 Cadillac XLR-V (tie)
Base price: $98,300
Engine: Supercharged, 4.4-liter, 443-hp V-8
Top speed: 155 miles per hour#10 Cadillac STS-V (tie)
Base price: $77,715
Engine: Supercharged, 4.4-liter, 469-hp V-8
Top speed: 155 miles per hour#9 Cadillac CTS-V
Base price: $53,370
Engine: 6.0-liter, 400-hp V-8
Top speed: 163 miles per hour#8 Chrysler 300C SRT8, Dodge Charger SRT8 and Dodge Magnum SRT8
Base price: $43,195 (300C); $38,695 (Charger); $38,345 (Magnum)
Engine: 6.1-liter, 425-hp V-8
Top speed: 165 to 170 miles per hour
* Pictured here: Dodge Charger SRT8#7 Panoz Esperante GTLM (tie)
Base price: $121,325
Engine: Supercharged, 4.6-liter, 420-hp V-8
Top speed: 180 miles per hour#7 Mullen GT (tie)
Base price: $89,950
Engine: 400-hp V-8
Top speed: 180 miles per hour#6 Mosler MT 900S
Base price: $189,000
Engine: 5.7-liter, 435-hp V-8
Top speed: 180-plus miles per hour#5 Dodge Viper SRT-10
Base price: $85,745
Engine: 8.3-liter, 510-hp V-10
Top speed: 190 miles per hour (estimated)#4 Chevrolet Corvette Z06
Base price: $70,000
Engine: 7.0-liter, 505-hp V-8
Top speed: 198 miles per hour#3 Silva Exotic Cars GT1 and GT3
Base price: $170,000 to $175,000 (estimated)
Engine: 7.0-liter, 550-hp V-8 (optional)
Top speed: 206 miles per hour#2 Saleen S7 Twin Turbo
Base price: $555,000
Engine: Twin turbo, 7.0-liter, 750-horsepower V-8
Top speed: 240 to 260 miles per hour (estimated)#1 SSC Ultimate Aero TT
Base price: $525,000
Engine: Twin turbo, 6.3-liter, 1,180-horsepower V-8
Top speed: 273 mph