There is no Dodge Viper race car for three reasons:
1. Under ACO rules there must be production of 25 roadgoing examples of the vehicle being entered. Clearly the Competition Coupe does not and has never met this standard.
2. The maximum engine size for GT1 entries is 8 liters, making the Viper’s 8.3 liter engine instantly ineligible. As an aside, the limit for turbo/supercharged engines in the GT1 category is 4 liters which is why the Ford GT, in an incredible blow to its own historical significance, will not be campaigned at Le Mans. Ford has to now field Aston Martins when they should have been starting Ford GTs.
3. As I have said a thousand times on this site, the low sales volume of the Viper will one day be its death sentence. As recounted in Dan Carney’s book, Dodge Viper, Dodge’s engineers said the low volume program now simply lacked the cash to continue to mount a credible effort in international racing. They added that they lacked the cash to simultaneously develop both a coupe and convertible so they had to choose one over the other. So Dodge’s lack of an entry has nothing to do with them being asleep at the wheel or uncaring. Nascar is cheaper and pays more so that’s where they are.
So GM is not buying anyone off or doing anything underhanded. The Corvette program is immensely profitable and so can afford the considerable expense needed to mount a definitive global Le Mans effort.
The comments about ALMS not slowing down the Corvettes overlooks the inconvenient facts that the C6-R is restrictor plated (two 31.5 mm plates) down to 590hp from 800hp. In addition, the C6-R was handed a 55-pound weight penalty which started from round seven at Road America on Aug. 21.