...then I suggest you buy the Z and put it to the so-called Stage III as soon as you can. Then spend more and more time on this site to get a richly-developed sense of what you want. Only then should you drop that cash into your car.
Meanwhile, invest that $10k in a nice low-load/no-load index fund...or just let it wallow in savings. No need to burn it up when you don't know what you want yet!