I bought my last car used. It was 2006 Audi A4 2.0T. It had 35000 miles when I purchased it and I took it to dealer to get any of the recalls and TSBs done.
It ran strong until 135,000 miles... torque converter went bad.
Buying used car is much cheaper and you may get some goodies out of it, but there is no 100% confidence that you'll get.
Brand new FR-S gave me a goooood confidence
