The World's Fastest Cars (10): Callaway Sledgehammer Corvette

Stock Corvette:

• 150 mph top speed

Callaway Twin Turbo:

• 180 mph top speed
• 0-60 under 5 seconds
• 13 second quarter mile
• 185 sold at Chevy dealerships in 1987
• more sold in 1988

Callaway Sledgehammer:

• built in response to AMG Hammer with 186 mph top speed
• Reeves Callaway would attempt 250 mph run; "drag racer" John Lingenfelter would be back-up driver
• high speed run took place at 7.5 mile high banked Transportation Research Center in Ohio
• twin turbocharged 350 engine produced 1,013 horsepower
• the record setting car drove from Callaway's headquarters in Connecticut to Ohio
• standard equipment: leather, power windows, carpet, cassette player, roll cage, fire system, 5-point safety harness
• body kit available to any 1984 or newer Corvette for $5,000
• the result: Lingenfelter took it to 254.76 mph