2009 Corvette "Blue Devil" Gets A New Name, ZR1
Chevy first used the ZR1 moniker for a reported eight cars built in the 1971 model year with a 370-horsepower, 350-cubic-inch (5.7-liter) small block V-8. The option cost $1,010, while a 425-horse 454 was $1,221. The '71 ZR1 came with no special bodywork or badging. Chevy revived the name in 1990 for a 32-valve Lotus-designed, Mercury Marine-built 375-horsepower quad-cam V-8. That car had a wider tail to accommodate P315/35ZR17 Goodyears on 11-inch wide wheels and was built through the '95 model year. Badges included a hyphen, as in ZR-1, which doesn't fit GM RPO nomenclature.
GM has never confirmed nor denied rumors that "ZR" stands for "Zora's Racer."