Cluster repair service near Dayton, 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.

This place surprised me a bit. All I needed was to have the horn replaced, but I found a popular small, family owned automotive business. It seems they've been in business for a long time and are fully ingrained in the neighborhood. The service time and cost was very reasonable. The attitude was welcoming and customer oriented...I was offered home made chocolate chip cookies that another customer dropped off..it seems this is a usual practice. :) I didn't have a chance to wonder when my car was going to be completed nor did I feel like I had to worry about exorbitant prices. I'd definitely go there first if my car needs service

All Speed Innovations aka Sigma Six Engineering is ran by a wanna be engineer named Pat Smith. Pat uses customer cars as his personal cars while in for service. They charged me for a alignment and the alignment wasn't done. They also took it to a alignment shop without my permission. When they installed plastic TGV deletes they connected a ground wire to them. Pat couldn't figure out how to connect his laptop to my car and disable the TGVs, I did this myself after reading how to do it on the Internet. They also built a cage for a customer and ruined the customers car. Everyone should stay away from this shop or anything related to what Pat Smith does.