Reno Rennsport was established in 1980 as a BMW repair shop. In 2008, under new ownership it was expanded to focus on BMW, Mini and Porsche. As an independent shop Rennsport provides service and repair for BMW, Porsche and Mini cars at competitive pricing versus the dealership.  The shop also provides performance and race development for BMW and Porsche cars. Supporting and maintaining cars that compete in NASA, SCCA, PCA, SVRA vintage racing, Spec BMW and Porsche Racing Club’s Spec 911 and GTL series.  Reno Rennsport is proud to be a local small business serving the northern Nevada area for over 35 years.

Reno Rennsport – A passion for safety, reliability and performance.


The Team:


Independent Porsche, BMW and Mini repair and service, Reno, Sparks Nevada - Mat

Mat Lowrance

Partner, Head of Race Development & Special Projects

Mat brings over 45 years of mechanical and engineering experience primarily with Porsche cars. He began his career in the bay area servicing early air cooled Porsche’s. Mat worked on and owned a number of 911 S’s RSR’s, RS and other collectible models. He also helped develop and maintain professional race cars such as the 935’s that were campaigned in the IMSA series. He also built and campaigned his own Porsches in several professional IMSA races throughout the late 80’s and early 90’s. After IMSA he moved to regional racing in SCCA where he acquired dozens of podium finishes. He is responsible for building a number of front running club racing Porsches in both Spec 911 and GT race classes. Once he relocated to Reno he became the lead Porsche specialist for Sport Haus for 28 years. Mat became a partner of Reno Rennsport in 2009.


John Trautwein

Partner, Head of Shop Operations

John brings over 10 years of experience as Rennsport’s head BMW Technician. He is also intimately involved with Rennsport’s Porsche work and helps manage all large builds and projects at the shop. John became a partner in 2014. He is known for exotic BMW Stroker projects, turbo and supercharger builds, but has also built Porsche spec 911 race cars and prepared several Mini Coopers for race competition in SCCA. John has extensive training and certifications for water cooled Porsche engine management and mechanical systems. He has also completed comprehensive certifications for Mini Coopers. When he’s not at the shop he enjoys spending time with his wife Hannah and two daughters Lilly and Layla.


Brian Lowrance

Partner, Head of Business Operations

Brian has over a decade of experience in finance and corporate operations. He holds a Bachelors degree In Business Administration from Cal Poly and has numerous financial designations.  Brian has spent nearly 20 years racing and developing Porsches with his father Mat. He currently campaigns a 1969 Porsche 911 in the Porsche Racing Club’s Spec 911 series. Brian became a partner at Rennsport in 2016.


Jess Lattin

Porsche Master Technician

Jess began his career with the Porsche dealership in Reno over 15 years ago. He has logged over 1,000 hours of Porsche factory training in Porsche’s North American facilities. He earned their highest certification as a Porsche technician and was the head technician for the dealership for many years. Jess has exceptional expertise with water cooled Porsches and newer models. He has significant training and experience working on 996’s,997’s, 991’s, Cayenne’s, Cayman’s, Panamera’s and even the 918 and Carrera GT. He was one of the first few Technicians in the US to complete 996 and 997 engine displacement enlargements. Jess also brings experience with other foreign exotic super cars such as Ferrari, Bentley and Lamborghini. Jess is the Technical Chairman on the board for Porsche Club of America’s Sierra Nevada Region.


Sonny Bonito Sr.

Senior BMW Technician

Sonny has been working solely on BMWs for the past 25 plus years. He is factory trained by BMW and spent over 5 years at the BMW dealership before deciding to join Rennsport. Sonny is the Lead Master Technician at Rennsport for all BMW work. Sonny also develops and maintains numerous BMW race cars that compete in SCCA regional and national races. He also campaigned his own BMW for a full season of SCCA racing. Sonny helps manage all of Rennsport’s custom BMW builds and projects.


Independent Porsche, BMW and Mini repair and service, Reno, Sparks Nevada – Chris

Chris Carini

Senior Mini Technician

Chris started his career working for an independent Jaguar shop in San Jose California over 30 years ago. Chris has broad experience with German, English and Italian cars. When he moved to the Reno area he was recruited by Sport Haus where he became friends with Mat and Steve. Chris came to Rennsport shortly after Mat and Steve and has focused much of his time on Mini Coopers. He has become the Shops Master Technician for Mini’s and understands the cars completely. Chris works on several track prepared and race competition Mini’s that compete in NASA and SCCA racing.



Nick Leveaux

Porsche, BMW Technician

Nick brings over 10 years of experience working on German cars. He is factory trained and certified for service work on German makes. Prior to joining Rennsport Nick was a mechanic for a professional race team which campaigned Porsches in the American Le Mans Series. He was also a mechanic supporting a Ferrari in the Ferrari Challenge racing series. After several busy years traveling with professional race teams Nick went to work at Evolution Motorsports where he became very familiar with newer model Porsches doing service work and performance tuning. Nick holds numerous certifications for German car makes. In his free time he enjoys spending time with his family and being outdoors.


Austin Tischler

Lead Fabricator and general technician

Austin brings over a decade of experience with professional fabrication and race teams. He started his career doing fabrication work and building professional off road racing trucks that ran in the SCORE series. Austin then went on to work as a fly-in mechanic for professional race team Fall Line Motorsports. The team campaigned Porsches and BMWs in the coveted Continental Tire Challenge. Austin traveled with the team as a mechanic to all series races for two years. In off-season he was responsible for fabrication at the shop. Austin was also involved in BMW S65 (V8) motor swaps to E46 chassis which the team became known for. He heads up all custom street and race fabrication at Rennsport.



Forrest Platt

Service Technician

Forrest has over 5 years experience as a structural engineer and project manager.  He manages daily service work at Rennsport along with special projects such as race car builds and restorations. Forrest also helps design, model and engineer custom parts developed at Rennsport for various racing and performance/restoration purposes. Forrest holds a BS in Civil Engineering from Cal Poly one of the top ranked engineering schools in the country. He also holds an EIT license in California.


Karla Benner

Service Writer

Karla is responsible for managing the front office at Rennsport. She brings significant corporate experience from the technology industry. Karla spent over 7 years as a Senior Supervisor at GameFly (the Netflix of video games) at their corporate headquarters in Austin Texas. Karla was responsible for a team of 20 plus employees and multiple service divisions and management functions. She moved back to Sparks Nevada to be closer to family and enjoy the Reno/Tahoe area. Karla holds a B.A. in Communications from UNLV.



Lars Hvegholm

Apprentice Technician

Lars joined Reno Rennsport in 2016 as an apprentice Technician. He was previously part of the inaugural group of employees at the Tesla Battery Plant. At Tesla, Lars was a Production Associate and was trained in all production departments for the battery factory. He completed his OSHA 10 certification in early 2016.