ZR-1, Z06, CTS-V, ACR, the 2011 Mustang GT, or for that matter the new Boss 302 would all like to have a word with you. Heck, even the Cobalt SS is a little rocket around a road course, especially considering it's essentially just a FWD economy car.
I feel like a lot of people formed their opinion of American cars decades ago and haven't checked them out again.
I can't really decide on one pole option or the other, depend on my mood or the type of car I'm thinking of I could easily pick a British car, German, Italian, Japanese, Korean, American, just about anything. Where it comes from and the badge on the hood doesn't really mean much. These days most everything is built from parts that were made all over the place, and assembled in a couple more, then finally shipped to the final build location and then dubbed a "German" car, just because of the badge. As long as the car does a good job doing what it was designed to do it will have my attention.