There is little in the automotive world that I like more than the S7 in terms of appearance... and its performance is pretty good too (this, of course, is a sarcastic understatement).
However, I'd choose something besides a Ford V8 ideally as the powerplant for my dream car. Nothing personal against Ford, it's just not the most sophisticated engine, even though it does undeniably sound great and certainly get the job done. I am a huge fan of forced induction, and something utilizing this would be preferable in my book.