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.