Speedometer repair service near Fairborn, OH

I brought my high mileage Mercedes here after it decided to not want to start. What is great about C's Autohaus is what they didn't do; they didn't try to take advantage of me because I'm a Mercedes owner, which up until now, I thought was some kind of code for moron to repair shops. I'm used to taking my car in to a shop and having them try to sell me thousands of dollars worth of useless repairs with highly inflated part costs. C's Autohaus was able to diagnose that it was just the starter motor, and replaced it at a responable price. They were also able to find and fix an oil leak the same day at, again, a reasonable price, and they fixed some minor performance issues while they were in there gratis. After those repairs my fuel economy went from about 10 l/100km to around 7 l/100km (smaller number is better). The shop itself is pretty cool too. They have a lot of old VWs from the 60s and 70s on their lot which I'm guessing are project cars.