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About the Classification System

GGC BMW CCA Autocross — how it works

Overview

The GGC autocross system classifies and equalizes BMW and Mini automobiles using a formula that accounts for horsepower, torque, gear ratios, differential ratios, and weight. Additional points are added for wheel widths, suspension stiffness, and owner modifications.

Equalized time formula: equalizedTime = ((60 / 59.901) ^ points) × actualTime × 0.85

The system was primarily developed by Matt Visser, Jason Sams, Jeff Roberts, Kris Linquist, and Ryan Rich.

Retired Numbers

In our program, retiring a number is one of the highest honors we can give. It represents more than success on course—it recognizes years of dedication, leadership, mentorship, and behind-the-scenes effort that helped shape who we are today.

Those whose numbers are retired made lasting, significant contributions that strengthened our community, improved our events, and inspired others to step up and lead. By retiring their number, we ensure their impact is never forgotten and that future generations understand the foundation they helped build.

NumberDriverJustification
3
Jack YuJack Yu was the definition of dedication. As a coordinator and course designer, he poured his time and creativity into every event, building courses that challenged and inspired drivers at every level. Beyond the pavement, Jack brought the program to life through the incredible shirts he designed—pieces that became part of our identity. He was always the first to raise his hand to help, and his quiet, consistent contributions left a lasting mark on the program.
4
Jeff RobertsFor more than a decade, Jeff Roberts helped lead the program through some of its most successful and defining years. Events regularly sold out with 100+ drivers in under five minutes—a testament to the culture and reputation he helped build. Though his trademark response might have been “No,” Jeff always put the needs of the drivers and the program ahead of his own. His leadership, integrity, and commitment made it an honor to work alongside him, and his impact continues to shape what we do today.
14
Matthew VisserMatthew “Matt” Visser dedicated years of leadership to the program and played a key role in building the autocross classification system as we know it today. His thoughtful approach and steady guidance helped create fairness and structure that still benefits competitors. Beyond his contributions off-course, Matt was simply a joy to be around—his contagious laughter and positive energy made every event better. He was not only a leader, but a genuinely amazing human being.
41
Dave SparksDave Sparks designed some of the most memorable and challenging courses our program has ever seen, and his course walks were legendary for their insight and clarity. When he wasn’t helping run the event, Dave could often be found coaching from the passenger seat—or setting FTD. His talent behind the wheel was matched only by his kindness and generosity with fellow drivers. Dave embodied the spirit of autocross: competitive, supportive, and always willing to help others improve.
76
Ryan RichI'M NOT RETIRED YET!!!
141
Kris LinquistKris Linquist led the program for years with an energy and enthusiasm that was impossible to ignore. His humor and passion made events welcoming and fun, and his leadership directly inspired several of the coordinators who followed him. Kris helped shape not just the structure of the program, but its personality. His influence continues to echo in the community he helped grow.
787
Grant MahlerGrant Mahler co-led the program through a pivotal era, ensuring a smooth and successful transition from Jeff’s leadership to a new generation of coordinators. His steady presence, teamwork, and commitment to continuity helped preserve the culture and momentum that had been built over years of hard work. Grant’s leadership during that critical period ensured the program didn’t just continue—it thrived.
Revision History
DateDescription
March 1st, 2026While reviewing our system base points, we found cars that were outliers in our system and adjusted their base points to more in line with their competitive advantage. 430i goes from 54 to 44 points. 328d Wagon xDrive goes from 11 to 30 points. 328d Sedan xDrive goes from 20 to 30 points. i8 goes from 60 to 50 points. Mini Cooper Countryman S ALL4 John Cooper Works goes from 50 to 42 points. Z4 s30i goes from 57 to 44 points.
March 1st, 2026Transmission point values have been revised to reflect performance differences between transmission types that were previously grouped together at 0 points. The new scale separates DCT, SMG, and the ///M-tuned 8-speed ZF from the standard manual and non-M 8-speed ZF, recognizing that the former group offers a measurable competitive advantage in autocross.
March 1st, 2026Tire point values have been revised to better reflect real-world performance differences observed in autocross competition. The new scale expands from four tiers to five, reduces penalties for non-DOT tires, and introduces a distinction between OEM-specced summer tires and aftermarket summer tires.
February 5th, 2023Updated available competition classes to include only C, B, A, and Gonzo.
March 16th, 2022Update transmission selection to indicate a selected for electric vehicles.
March 16th, 2022Removed 2 points from the i3 base calculation.
February 28th, 2022Removed the "W" class.
February 28th, 2022Added 2018-2022 vehicles that we commonly see or expect to see at a future event. If your vehicle is not in the system, please reach out to us at autocross@ggcbmwccca.org.
February 28th, 2022Wheel width will no longer take vehicle package into consideration when determining initial wheel width. It will be the owners responsibility to determine their wheel width.
February 28th, 2022Vehicles with the 8 Speed ZF transmissions will no longer receive a handicap.
February 28th, 2022Base points for all vehicles have been reduced by 10 points
March 22nd, 2017The E90 M3 base points have been adjusted from 55 points to 58 points.
March 22nd, 2017The E92 M3 base points have been adjusted from 56 points to 59 points.
March 22nd, 2017The E93 M3 base points have been adjusted from 52 points to 55 points.
March 22nd, 2017The F80 M3 base points have been adjusted from 61 points to 63 points.
March 22nd, 2017The F82 M4 base points have been adjusted from 60 points to 62 points.
March 22nd, 2017The F83 M3 base points have been adjusted from 59 points to 61 points.
March 22nd, 2017A car was added the to system: 2001-2006 M3 (Without Sunroof). This car has 55 base points.
March 22nd, 2017The description for camber modifications have been updated to include the removing of alignment pins to achieve more camber.
March 22nd, 2017Added the "W" class, where everyone is a winner!
Points → Class Table
ClassFromToAdjustedAdjustment Formula
Gonzo 80 999 Y ((60/59.901) ^points) * time * 0.85
A 60 79 Y ((60/59.901) ^points) * time * 0.85
B 40 59 Y ((60/59.901) ^points) * time * 0.85
C 0 39 Y ((60/59.901) ^points) * time * 0.85