REALISTICALLY, this bad boy ... Cadillac CTS-V...
I rented one of these (not "V"... but it was 2dr) on a trip to Miami a couple weeks ago. Wow. If we can keep making these kind of cars, Det has comeback potential. (if you can't tell, I'm pretty biased towards American cars)
For me, my Grand Am will probably continue to be my chariot until it crumps (or I've made partner and paid off most of my loans). My wife needs the next new car more than I do right now. Eventually, I'd like a Caddy (XLR maybe, or CTS-V) and a Wrangler Rubicon. The Tesla Roadster is also a great, but they have a multi-year waitlist with the Hollywood celebs and Silicon Valley types. Having heritage from south Europe, of course a Ferrari is attractive toy to me, but back in reality, I could never justify the upkeep, insurance, etc when I have goals of a happy, well educated family and early travel, etc.
In all honesty, if it makes sense (based on our per-hour earnings, estimated use, etc), then I hope to eventually have a car service for business use by myself + partners. I'm getting sick of almost getting mowed down by texting teenagers, driving around in post-call delerium, etc. A driver lets you dictate, surf the net, etc while you commute in relative safety from office to office, surg center to center, etc.