People are starting to talk: Cadillac CTS-V may be short of claimed horsepower

Autospies breaks it (Cadillac's possible dearth of HP, I mean) down for you with some extremely technical data as well as some extremely subjective opining. The basic gist of it is that some CTS-V owners feel that their cars may have up to 35-hp less than the claimed 400. There is much discussion of dyno numbers, as well as the fact that the CTS-V shares an engine with the Corvette Z06, which produces 405-hp. Consumers found a similar discrepancy in the 1999 Ford Mustang Cobra, which resulted in a class action lawsuit against Ford.