I may get tarred and feathered for suggesting this, but if I were in your situation, I would just go buy a new Honda Civic and drive the thing for 15-20 years. You're income is $200,000/year.
One of my now-retired physicians I knew bought a 1988 Honda Prelude new and drove the thing until he retired in 2005. Even if you have to finance the thing on a 3 year, 0.9% Honda loan, the $21,000 spread over 15-20 years of ownership is not a bad financial decision. I think its specs are 28/39 mpg and you'll have a good car with some comforts.
I'm all about total cost of ownership in my purchases, we buy a new car and drive the things well into 150,000/miles and at least 10 years of ownership. In my opinion, the only thing that (used) to suck about that is my state likes to tax annually based on the value of the vehicle, but that's now been changed to a one-time sales tax at the time of purchase.
Congrats on your progress.