My car buying experience with McLaren Philadelphia...

My car buying experience with McLaren Philadelphia was going well until the Pre-purchase inspection done by bimmerworks which is also located in west chester, PA. I am located in VA and have been looking for a E46 M3 for some time and found one that matches my criteria at this dealership through the internet. Because these M3's are older, this being a 2004, I wanted a thorough inspection done before purchasing. The dealer was okay with me getting a PPI done through another dealership. This PPI was done AFTER their own 100 point "McLaren high standard" inspection. It went through their own inspection with nothing noted that needed replacing, no rust, needs nothing. After I paid the $200 fee to bimmerworks (which they did an amazing job by providing photos with the PPI report), they found a few things wrong with the car, but to me, weren't a "dealbreaker," until I read the report about the rust. I specifically told the salesperson/dealer before the car being taken to bimmerworks, that rust IS a dealbreaker. Why I'm giving such a low rating is because how a McLaren high standard 100 point inspection could not identify rust which was visible on the right rear quarter panel is beyond me. It was not hidden inside of something, or something needed to be moved or taken apart to see this. This rust visible with nothing being taken apart. If they were able to do the "100 point" inspection correctly, I would have not even sent the vehicle to bimmerworks for the PPI that cost me $200. Reimbursement was not offered. I would understand if the PPI uncovered something that took a little more time to uncover, and they didn't offer a reimbursement. But a McLaren shop that has a "high standard" in their 100 point inspection after this experience is pretty much pointless. There were 7-8 items that needed replacing or work done but in their 100 point inspection, everything came out 100% clean/good. Can't trust this dealers shop at all.