I never liked those super-expensive cars... Most of them are way over-priced, offer no real design/technology innovation, consume lots of fuel, and some are really ugly to my taste (Lambos included).
I'd prefer a good Japanese, super-reliable and normally-priced car. Or a car with real innovation in its design, like a Tesla (provided they sort out their QC issues).
This would not change at all if I had 10, 100, or 1000 BTC.
We've always liked buying slightly used higher end cars. Have had Cadillacs, Lexus and most recently BMW of late. Wife got a 328ix and I just got a used 550ix. Hands down best car I've ever had, and probably will stay brand loyal for a while.
But I'm cheap too. The 550 is a 2011 with 100,000 miles and it had it's engine replaced at mile 80,000 so it was sitting on the lot for around 90 days $3,000 under blue book. I was like, "but it has a brand new engine" and snapped it up. Been driving it a year with no problems whatsoever. And she moves.