Got dry sump? http://www.corvette-mag.com/art1/art1p1.html If NASCAR had stricter homologation rules, Dale Earnhardt Jr. would be lapping Daytona in a front-drive four-door with V6 power. Alternatively, I suppose, your mother-in-law could cruise to the Piggly Wiggly in a tube-framed coupe with a live axle and a giant, four-barrel-fed V8. Homologation requirements dictate how closely related a given racecar has to be to its roadgoing (purported) equivalent, and there's plenty of variety between various series when making those calls. In NASCAR, to race as a Ford or a Chevy pretty much just means slapping the appropriate grille-shaped decal onto the hood; in SCCA Spec Miata, some cars still carry their original license plates. The closer a competition environment gets to making racecars remain true to their streetbound forebears, the more any manufacturer must either accept street-specific hardware on its track cars or give its production cars trackworthy goodies. The latter is obviously more enticing to the car-buying public, but it all can get taken too far. Street-legal "homologation specials" often end up being so expensive that no one can actually buy them, thereby defeating the whole purpose of street-car-based racing. For most of Corvette history, a conflicted approach to motorsports—and therefore to cool homologation cars—has been an all-too-familiar bugbear. The Corvette Grand Sport of the early '60s is the most famous example, promising as it did the supercar to end all '60s supercars but delivering just a wistful what-if. Had the proposed 100+ streetable copies been built as FIA racing rules then required, it's reasonable to assume that street Corvettes might have been changed to this day. (Not that the Chevrolet camp probably intended to honor those totals in any case. Enzo Ferrari always played fast and loose with the FIA inspectors, so Zora Duntov is unlikely to have done any different.) Regardless, while Corvette fans dreamed of Grand Sport homologation replicas, GM management wouldn't countenance even five cars, let alone 100 or more. As Corvette historian Karl Ludvigsen quoted GM chairman Frederic Donner saying in '64, "[Racing cars] are very different, however similar their names, from the cars built for sale to the general public…. They must possess qualities which aren't the same as those that the majority of the buying public seek in a car." Such timidity didn't affect Donner's counterparts over at Ford. Later that same decade, the Dearborn crew tossed that narrow-minded stance out the window with the GT40 and went on to win Le Mans four times straight. The mid-engined miracle first ran as an unhomologated prototype, but eventually qualified itself as a production car thanks in part to a number of roadgoing copies. Fast-forward to '05, when a mid-engined Ford with warmed-over GT40 lines has already been the darling of show stands and magazine covers for going on a year. Even the next-generation Corvette can't get as much play as the semi-serious Ford GT, but that's finally about to change: The new Z06 has arrived, and it's going to keep the '60s from happening all over again. Corvette history, of course, has taken some much better turns since the era of Frederic Donner. The second half of the C4 generation, for example, saw Chevy re-embrace factory-backed racing with its very own series, the Corvette Challenge. Shortly thereafter, a limited-run supercar arrived in the form of the ZR1, followed by the FIA-legal (and eventually Le Mans-winning) C5R racer a decade later. Cap it all off with the low-volume Z06 of 2001-'04, and things must be looking up. With the arrival of the C6, Corvette engineers got a nearly clean slate from which to create the next round of such street and racing successes, and the upcoming C6R and Z06 are the result. Indeed, the development teams elected to create the two virtually side-by-side, throwing away the notion that racecars and road cars must have little in common. Instead, this program proved that the goals of a sports car for both road and track could be furthered by studying them together...... Repost??? I searched.