Last year, the Tesla Model 3 Performance became the first electric car to win the SCCA Solo Autocross National Championship in the B-Street class. Behind the wheel was David Marcus, who managed to beat a 2019 Ford Mustang Shelby GT350 by 0.070 seconds as well as other performance cars including a Lotus Evora and BMW M2. But if you were hoping to use the Tesla Model 3 to dominate the SCAA autocross championship next year, it won't be as easy.

According to Grassroots Motorsports, the SCAA (Sports Car Club of America) has reclassified the Tesla Model 3 from B-Class to Super Street, effective as of January 1, 2020.

Effectively, this means the Tesla Model 3 will now be competing against high-performance sports cars such as the Acura NSX, Porsche 911 GT3, and Chevrolet Corvette Z06.

The SCAA hasn't explained what prompted these changes to be implemented, but the Model 3 Performance's recent over-the-air updates are likely to blame. Last year, Tesla released a software update that increased the Model 3's power by around five percent, resulting in an extra 23 horsepower and 24 lb-ft of torque and an increased top speed from 155 to 162 mph.

Likewise, the Model 3 Long Range is now offered with an "Acceleration Boost" upgrade available for an extra $2,000 that reduces the 0-62 mph time to 3.9 seconds, a 0.5-second improvement over the standard car's 4.4-second time.

It will be interesting to see what Elon Musk will have to say about the new regulations. On one hand, he may not be happy about the Model 3 Performance being reclassified due to the software upgrades or he could be happy the electric sedan is being positioned in the same league as the Porsche 911. Either way, it probably won't be long until Elon Musk shares his opinion about the SCAA changes on Twitter.