Or....take an auto mechanics course so you can fix your own car and save that $75 an hour flat rate....
The dealer bills you flat rate or shop hourly, either way, your 50% pays all the dealer's cost. The markup on the parts is at least 100%:you pay the full cost to the dealer, and in many cases, the dealer even makes a little.
Last time I saw one of these, I haggled for a significant cut in price and took the vehicle "as is". The rear end problem they seemed to think the car had (I pointed out the clunk after the test drive and a look) was a poorly tightened U bolt on the hindmost U joint, a five minute fix. I got the car for about 30% off.
BWAAAAHHAAAAHHAAA, which course would that be ???
I went to advanced auto and the muffler retails at $175 sells for $89. But, Monro only charges $22 dollars labor and that makes you think you are getting a good deal.
I will be changing it myself and save $230.