Well a $67k msrp car will have the repair bills of a $67k msrp car, not one of a $13k car.
If it makes you feel any better, some people on here have $15-20k into their 100 series that cost them $6k. I personally have spent 1.8x the purchase price of my 100 on just parts, repair and little things, not counting modifications
^^^ This. I budgeted a $14k-$15k spend on refresh and enhancements during the 1st year. I usually spend 3x the purchase price on a vintage (mid to late 90s) Japanese car restoration. The reward is 8 to 10+ years of trouble-free and exceptionally low maintenance operation. Granted I spend a lot of personal time during the first year completing the restoration. I've been doing this with 90s Japanese cars for over 10 years now. Without going into too much detail, the money I save on depreciation, insurance, taxes, and license fees over the 10 year period compared to a new vehicle, results in a saving that covers the cost of the used vehicle's purchase and mid-life refresh enhancements.
For me, the cost model only works with these conditions:
1) The vehicle has already bottomed out (no further depreciation expected at the end of the run period).
2) I can DIY all of the maintenance except bodywork. Any bodywork would need to be a minor expense.
3) A reliable low-cost source for OEM parts.
4) I can run factory diagnostic software on my PC.
5) No rust.
6) Reasonably decent interior.
7) A good transmission.
8) Engine can pass a coin balance test or be very close.
9) No more than 250,000 miles -- knowing a properly cared for version will run to 400,000.
10) Has a timeless look that I can live with for 10 years.