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World’s Fastest Cadillac

Don’t try this in your CTS-V.

by on Oct.13, 2009

Yes, this is a Cadillac...if you consider the 8.8-liter iron block engine under the, er, hood.

Yes, this is a Cadillac...if you consider the 8.8-liter iron block engine under the, er, hood.

Don’t try this at home. Or in your stock CTSv.  When Amir Rosenbaum set out for the world record for the fastest Cadillac, he headed to the Bonneville Salt Flats, clocking two runs at just under 331 mph.

A quick look at the bullet-nosed Speedliner says this isn’t your ordinary Caddy.  The product of two years of research and development, it started out as a fuel tank for a Canadian VooDoo bomber.  Measuring 38 feet in length but only 29 inches in width, Spectre Performance’s aerodynamicist, Ken Rappaport developed a tapered tail fin to house the rear wheels while minimizing drag.

Your Fastest Source for Automotive News!

Your Fastest Source for Automotive News!

The heart of the Speedliner was a specially modified Cadillac iron block engine bored out to 8.8 liters and fitted with twin intercooled turbos.  In an unusual design touch intended to further reduce wind drag, Spectre skipped the usual, top-mounted scoop, instead drawing air into the engine from high-pressure areas on the lower side of the body.  There was one drawback: during each run down the Flats, the scoops sucked in 100 pounds of salt that had to be filtered out before reaching the engine.

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