Round 10 of the Federal Tires SpeedSF Challenge was one of the best in recent memory, not only with a McLaren Senna entering the competition, but there were 5 entries in Group X with 2 being McLarens, a 720 and Senna. A total of 29 entries across all the groups joined the competition, ready to put down their best lap times.

Our 1st place winner, none other than the Dirty Mango Gary Yeung, put down a 1:48.420 NEARLY beating his previous class-best time of 1:48.399. Hey Gary, save some records for the rest of us, yeah?

Federal Tires' performance are motorsports-proven, and so we asked our SpeedSF instructor, resident racecar driver, and an all-around good guy Michael Ostby, to give us his feedback/review of the Federal 595RS-RR. 

Back at it again here in Wine Country. The SpeedSF Challenge barrels into Sonoma Raceway with an epic 40+ cars on our lineup sheet. Today's event served as a healthy reminder for drivers to PLEASE SIGN UP PROPERLY so that you are entered into the event according to your proper class. We want you to be a part of the fun, so please fill out the paperwork accordingly. 

The SpeedSF train rolled into Willows, CA once again for another two-day event weekend at Thunderhill Raceway. As cars flowed into the city and the symphony of exhaust notes filled the air, participants in the SpeedSF Challenge were anxiously looking forward to moving up the leaderboard and seeing what they could come away with this time.

Everyone knows what happens on Sundays with SpeedSF (the SpeedSF Challenge), but did you know a group of like-minded individuals who pilot a BR-Z/FR-S/86 get together on Saturdays during a SpeedSF weekend and have their own challenge? Effectively known as the NorCal86 Cup, it once again appeared at Thunderhill Raceway for its 2nd round shenanigans.