The Cadillac ATS boldly confronts the reigning champ of the entry-level luxury set, the BMW 3-Series – on its own terms, with a taut rear-wheel-drive platform, a trio of ballsy motors, and pavement-hugging handling the Germans are surely taking notice of. We can argue over which camp wins particular skirmishes, but the ATS is a historic car merely for the fact that a made-from- scratch Cadillac immediately demands consideration as the best sports sedan in the world. [from $33,095; cadillac.com]