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January 2024 by Kendin Carr
Marc and his staff were professional and capable. They delivered my BMW on time and at the price they quoted. Excellent service.
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September 2023 by Jacob Albrecht
I could tell from the moment I spoke with GPS on the phone I could tell this would become my go-to mechanic in the future for my 3 series. Took a look at the car and gave me advice on safe modifications as well as wheel fitments at no charge. Highly recommend. Will be taking my car here for all maintenance.
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September 2023 by Kara Albrecht
I could tell from the moment I spoke with GPS on the phone I could tell this would become my go-to mechanic in the future for my 3 series. Took a look at the car and gave me advice on safe modifications as well as wheel fitments at no charge. Highly recommend. Will be taking my car here for all maintenance.
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July 2023 by Jack Lambert
Had an unusual request for my 16 Porsche Cayman GTS to upload a GT3 power steering coding. Mark communicated the potential pro's and con's of change that might occur....$44.75 later, could not have been happier. I will be back for more service!
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April 2023 by RAFAEL MCKNIGHT-GOMES
When it's comes to trusting a garage that knows how these cars work and get the job done correctly this is the place where your vehicle needs to go and be maintenance by all around great work in the Boston metro west area this is the place to go
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April 2023 by Ophelie L.
Marc and Chris were amazingly responsive and flexible. My battery died and my schedule at the hospital is very challenging to fit in appointments like this. Marc was flexible and understanding in coordinating a convenient time to have the battery change. When I first called he was able to give me an accurate quote for the battery replacement and had the parts (which the Mini dealer could not even confirm with me over the phone when I called them). The price for the battery replacement was $150 less than the dealership and was done much more quickly at GPS than the Boston dealership offered me. They even have access to the dealership records for maintenance and were able to add on an oil change which was long overdue. Everyone was incredibly nice, fair, competent, and authentic. GPS has gained a new longterm customer!
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March 2023 by Liam Sullivan
German Performance Service is the epitome of an honest, fair car repair shop. I took my BMW 428xi to a dealership and was quoted an exorbitant amount of money for a repair. Mark and his team executed the repair for 95% less than what the dealership would've charged me. If you own a german car, you MUST get your repairs and maintenance done here or else you're losing money. Kudos to this shop and their team of technicians for running an honest business.Services: Auto exhaust system replacement
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February 2023 by Kelley B.
Marc has been nothing but awesome to work with for the 15+ (??!!) years I've been servicing my car with GPS. The knowledge and quality of his work is unmatched and these standards are upheld across the GPS team. When it came time to pick out my latest car, I stuck with the same brand so I could continue to work with GPS -- that is the level of commitment I feel to their honesty and customer care. The schedule is always booked out but Marc consistently makes an effort to get me in with smaller repairs (and is not afraid to suggest I take repairs to the dealership if he can't fit me in earlier). It's clear Marc loves his work and I appreciate his efforts to go above and beyond to earn the trust and loyalty of his customers.
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November 2022 by Jaison B.
worst place dont ever bring tour car there
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October 2022 by Asaf Waizman
Working with Marc and team is an absolute pleasure. I came to Marc with a few unusual problems/asks, and he always found the time and patience to discuss with me what and why should be the best path forward to get what I want. As for the work itself, it’s second to none. Since I started to use GPS as my go-to place for anything to do with my car, I never had any problems, and the car is running great.Thanks guys! Keep up the great job!Services: Auto exhaust system replacement
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October 2022 by Eric Liu
I called to ask if they would be willing to travel for a pre-purchase inspection. Marc answered the phone and although he wouldn't be able to travel for the job, was very helpful in trying to provide guidance and recommendations on what to look for. Very honest and straightforward guy!
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September 2022 by Laurence Leccia
Maybe don't call yourself "German" Performance Service if you only cater to the luxury brands (BMW, Porsche and Mini)I also called about a tire problem. Didn't know the manufacturer mattered that much for tire issues.In any case, my VW and I will go give our business somewhere else.
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August 2022 by Taylor Jackman
This is hands down the best shop I've been to. I've got a tuned 335i and I have never talked to anyone more knowledgeable about the intricacies of this electromechanical nightmare. I seriously can't recommend him enough. Thanks Rob!
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March 2022 by Seth Weisman
Mark is very detailed with his work. It's great to have trust in your mechanic that you use! I'm grateful to have his professionalism with what he does. It's hard to find these days!! Thank you for the work you have done.
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January 2022 by Mark McCabe
Marc's encyclopedic knowledge and experience with (old and new) BMWs and Porsches is world-class. Repairs are completed on time and at competitive prices. Highly recommended!
