A huge part of our mission is to bring the car enthusiast community in Southern California together around the thrill and challenge of track driving, racing, and motorsports. We can't do this alone. Check out our friends and community partners below.



SDC organizes welcoming, worry-free track events without run groups or sessions. They maintain low car counts at each event, and, more importantly, cultivate a friendly atmosphere for drivers of all experience levels. Grid Partners is proud to be a 2023 SDC Sponsor.

Speed Ventures

Active for over a decade, SV is regarded as the go-to track event organizer in SoCal. Countless drivers have started their time attack and club racing careers through the numerous events available year-round. Time and time again, SV puts on a solid, fun track weekend.

Local Performance & Repair Shops

Castro Motorsport

Chris and his team are the go-to shop in SoCal for BMW restorations and unique builds. They spare no details and their builds are known around the world. These guys work hard and it shows.

Monrovia Alignment

This husband-and-wife duo perform comprehensive, thoughtful alignments for track and high-performance street cars. We highly recommend them for corner balancing and suspension setup needs.


Specializing in BMW, MINI, and Porsche vehicles, Danny and his team are ready to help prep, maintain, and upgrade your track and street cars. They are knowledgeable and friendly, and we've been using and recommending them for over a decade.

Racecars Unlimited

The team at this Huntington Beach performance shop specialize in consulting and building road-racing track cars and high-performance street cars. They provide expert guidance and quality work to get projects out of the garage and back on the track where they belong.

Other Cool People

SUB2 Speedhouse

A curated online shop focusing on the best parts for the BMW M3 (E9X and newer). Our friend & store owner Alex says "buy once, cry once, and get it right the first time." We definitely agree with you there man!