Camaro ZL1, though it'd be better if they save it for Series 19, when they can compare it head to head with the latest GT500 (the 200 mph one).
Ideally, they'd do it as part of a cross N. America (west-to-east) roadtrip. It'd be perfect... the mountains of BC (home!) and western Alberta, followed by the badlands and flatflands of northern mid-west USA, head to the factory in Michigan where they build the Mustang, then back into Canada via Ontario so they can visit the factory where the Camaro is built (Oshawa), and continue east through Ontario, Quebec, the maritimes, and finish in Newfoundland, just in time for them to take these cars and compete in the Targa Newfoundland (hey, I can dream, can't I?)