I guess the real question boils down to cost of ownership. If a new car is discounted, so will a used car be discounted. After a few years it will be obvious whether the repairs are holding up. Worst case, you will get a 30% discount on your depreciation, and maybe even do better than that?
(I bought a used BMW convertible. It had had the top replaced because it was slashed. They could not even steal the radio. So they stole all four wheels. Fixed up like new and discounted. Great car! Sold on craigslist 3 years later. No extra discount.)
For the fun of it...Keith