Boston’s Local Independent Mechanic

Specializing in BMW, Porsche, and Mini.


Our Story

Founded in 2006 in Cambridge, MA, and located in Brighton since 2009, German Performance Service is a local independent mechanic, and BMW, Porsche, and MINI parts and repair facility. We have a 5,000 square foot repair facility that’s easily accessible by Green Line T, MBTA bus service, and the Mass Pike.

German Performance Service was founded on the idea that BMW, Porsche, and MINI owners in the Boston area need a dealer alternative with the same or better expertise. At GPS, we maintain a personal relationship with our customers, which is often missing in a dealership environment. GPS employees are skilled craftsmen and automotive enthusiasts. Our staff treat each car as if it were their own, communicate details of the repair process, and are always willing to explain each job from start to finish.

Our staff have combined experience of over 40 years caring for German cars.

Owner- Marc Feinstein

    Prior to opening GPS in 2006, Marc spent more than six years as Crew Chief and Race Engineer for Turner Motorsport, winning multiple championships. During his tenure, TMS became America’s leading BMW race team, winning championships in 2003, 2004, 2006, and 2007. Since opening GPS, Marc has been involved in the service operation daily. He continues to spend time working on cars, from oil changes to engine or differential rebuilds. Marc’s specialty is diagnosing uncommon, difficult and insolvable problems. Marc’s cars include Porsche 356 and 911, and a BMW 2002 race car.

To learn more about Marc’s experience, check out his driving and crew chief resume .

Service Manager- Rob May

    Robert has been involved in the automotive industry for ten years and brings valuable experience to the GPS team. Originally from San Antonio, TX, Robert relocated to Boston in early 2011. Before his move to Boston, Robert worked as a service advisor at Rhine West in San Antonio, TX, which is a shop that works exclusively on BMW cars and motorcycles. Since his move to Boston, Robert has worked at Boston’s Brookline BMW and Jaguar as an automotive technician and service advisor, where he performed diagnostic analysis, repair, and maintenance on BMW, Jaguar, Audi, Mercedes. He currently manages all areas of operations, including scheduling, billing and inventory. He currently owns a 87 BMW 325is.

Technician- Keith Way

    Keith has been an automotive technician since 1997. His experience has run the range from vintage auto restoration to several years with the Turner Motorsport race team. Keith is passionate about BMW’s and currently has two E30’s and an E90 330i.

Technician- Chris Spartichino

    Chris is a local guy from the Cambridge/Lexington area, where he attended Lexington High School. He played Football at Fordham University for 2 years. Being someone that hates paper cuts, Chris began working on cars in 2004. He attended WyoTech in Fremont California, then attended the BMW F.A.S.T. Track program. Chris’ interests include firearms, video games, and snowboarding. He is also certified by Sig Sauer as a pistol armorer.

Technician- Nick Grabau

    Nick comes to us from DSG, a former local race shop. He graduated from UTI with top honors and is an expert at electrical diagnosis. Nick has great experience servicing and maintaining racing cars from his former job and hopes to bring that to GPS as it’s newest team member. Nick competes in time trials at the track as well as in the New England Hillclimb Series in his E36 M3 that he constructed himself. When not at work Nick likes to hike with his dog Avery in the woods.