James Clay
January 5th, 2023
From 2021 to 2023, James’s focus shifted to GT4 racing in the SRO, where he claimed both the SRO championship in 2022 and the top step in the BMW Sport Trophy, alongside co-driver Charlie Postins. Moving to the new G82 M4 GT4 platform, James and Charlie quickly found success, securing seven wins throughout the season and clinching a second SRO GT4 championship.
In 2020, with a full race schedule in the IMSA Michelin Pilot Challenge and the SRO TC America series, James pushed the team to secure the Driver’s Championship in his M240iR, bringing the team to second place in the overall standings of the TC series and aiding BMW in achieving fourth place in the Manufacturer Championship in IMSA.
In 2019, James, alongside teammate Devin Jones, secured third place in the GS standings with three podiums and eight top-ten finishes, also earning the top-finishing BMW team honors in the GS class. A single SRO TC America weekend at Road America in a BMW M240iR laid the groundwork for a future SRO program.
2018 saw James and Tyler Cooke team up for the final year of the IMSA Continental SportsCar Challenge, competing in their new No. 82 BMW M4 GT4. With three podium finishes in the Grand Sport (GS) class and a significant victory in the season finale, they paved the way for further development and success in the BMW M4 GT4’s inaugural year.
From 2013 to 2017, James collaborated with BimmerWorld drivers John Capestro-Dubets, Jason Breidis, and Tyler Cooke to enhance the F30 BMW 328i in the IMSA ST class. This project marked the first professional race of a BMW turbo engine in North America and the first 4-cylinder F30 raced worldwide. Their efforts culminated in a world-first pole position and multiple top finishes, showcasing the turbo 4-cylinder BMW’s potential. In 2017, James’s debut at the Nürburgring in Germany with co-drivers Tyler Cooke and future BimmerWorld co-driver Charlie Postins highlighted their performance with a steady second position in the BMW M235iR during the 24 Hour before an early morning component failure.
In 2012, James secured three podium finishes in the IMSA ST class with co-driver John Capestro-Dubets, finishing fourth in the Driver’s Championship and contributing to BMW’s Manufacturers’ Championship win. He also achieved second place at the historic inaugural Indy race.
Before 2012, James’s racing career began with a BMW Club Racing event at Pocono in 1998, followed by numerous SCCA Regional ITS wins, SPEED Touring Car races, and his first professional win at Road America in 2008. His shift to professional endurance racing in 2010 led to the development of three new platforms over five years.
Personally, James, a Virginia native, discovered his passion for cars and speed after his 16th birthday, a passion that grew during his EE and MBA studies at Virginia Tech. This passion led him to focus on building his BimmerWorld company, moving away from traditional employment. Besides racing, James enjoys jet skiing and grilling, embracing the summer season.
Charlie Postins
January 4th, 2023
Over the past two seasons, the driver lineup of Postins and Clay has proved to be the class of the field in the AM class. The pair head into the year with their sights firmly set on a hat-trick of championships. For 2023, Charlie partnered with James once again in the SRO Am class, this time campaigning the new G82 GT4 M4. Unlike in 2022, the racing year got off to a slow start, with a third-place finish in the first race and an unfortunate, race-ending incident in the second race. Thankfully, that marked the low point of the season, from which the pair rebounded well. Ultimately, James and Charlie once again claimed the SRO AM Championship, winning another 7 races along the way.
Charlie returned to full-time racing in 2022 alongside BimmerWorld’s James Clay. The program, racing the F82 M4 GT4, came together at the very last minute but got off to a fast start with a pole position, one second place, and a victory at the first race of the year in Sonoma. That laid the foundation to being crowned SRO GT4 America Am class Champions with 7 class victories. Furthermore, the level of success culminated in James and Charlie winning the prestigious BMW Sports Trophy.
Following a several-year hiatus from racing to focus on his career, Postins re-entered the sport with a series of race outings at the challenging Nurburgring in Germany, often with James Clay as a co-driver. Charlie has competed in the legendary Nurburging 24-Hour race four times; in a BMW M240 on three occasions and once in a BMW M4 GT4.
His best result at the twice-around-the-clock race was in 2020 when he finished the Challenge of the Green Hell in fourth place in class. Charlie also secured a class win in the BMW M4 GT4 in 2022 at the qualification race for the 24-Hour race.
In 2017, Postins took class victory along with co-driver James Clay in the Thunderhill 25-hour race in the EO class. This flag-to-flag victory came in El Diablo Racing’s BMW E46.
In the early years of his motorsport career, Postins competed in his home country of England. Standout performances included finishing third in the 1996 Renault UK Clio Cup and fourth in the 1993 British Formula First Championship.
Charlie moved to San Diego from the UK in 1996 to take up a position as an automotive design sculptor with Nissan Design America. This move followed a successful career in clay modeling throughout Europe for manufacturers such as VW, Saab, and Porsche. In 2007, Postins shifted gears from the automotive design world to assist in developing a pet food startup. This company, The Honest Kitchen, is now recognized as the leading Human Grade pet food brand in America and is sold throughout North America. Charlie currently serves as a board member for the company.
Feeling drawn to automotive design once again, Charlie is now actively involved in sculpting automotive shapes of the future through his race and design company, Exhall Automotive.
James Walker, Jr.
January 3rd, 2023
Originally from Rochester, New York, James Walker, Jr. is a licensed Professional Engineer at Carr Engineering, Inc. He currently resides in The Woodlands, Texas, and brings 30 years of real-world experience to his analyses of vehicle dynamics and the reconstruction of motor vehicle crashes.
James graduated from the GMI Engineering and Management Institute in 1994 with a degree in automotive mechanical engineering. Following his passion for auto racing, he founded scR motorsports in 1997. He competed for seven successful years in the Sports Car Club of America’s SSC and ITA categories. Despite shifting his on-track focus to high-performance driving instruction with the Porsche Club of America in 2004 due to his growing family, he still found time for the occasional ChumpCar race, often behind the wheel of a Saturn SC2. In 2017, he joined the team at Risi Competizione, competing for two years in the North American Ferrari Challenge 458 Championship. He continued with Risi into the popular TCR category in 2019, pursuing the TC America Championship in an Alfa Romeo Giulietta.
The 2020 and 2021 seasons presented new challenges, as James partnered for the first time with BimmerWorld Racing and Bill Auberlen to pursue the GT4 SprintX Pro-Am Championship. In 2022, for his third attempt at the championship, James was paired with Devin Jones. The 2023 season brought further change, with James sharing a brand-new second-generation BMW M4 GT4 racecar with co-driver Tyler McQuarrie. In his most successful season to date, the duo scored a second-place finish in the GT4 America Pro-Am category, narrowly missing the championship by a single point.
Parallel to the evolution of scR motorsports, James has actively served as an industry advisor to Kettering University in the fields of brake system design, vehicle dynamics, and brake control systems. He has been a brake control system consultant for StopTech, authored High-Performance Brake Systems: Design, Selection, and Installation, and serves as an SAE Master Instructor in his spare time.
Tyler McQuarrie
January 2nd, 2023
Previously:Tyler has been racing for almost 25 years! He has raced and won in multiple different categories ranging from Formula Cars, Stock cars, Sprint cars, Drifting , Off Road, and Sports Cars. Sports cars have been his focus for a majority of his career and he has multiple poles, wins, and the 2019 IMSA GS Championship to show for it.