A little history about Street Mod. It all started when Dennis Grant wanted to boost the crap out of his DSM. At the time, the only class that this would take it to was either mod or prepared. Yikes. So he petitioned the SCCA and was eventually given provisional status.
Other drivers, particularly those with Mustangs had substantial suspension modifications (K-members and subframe connectors) that also put them into XP or XM classes. Through the years, these were put into SM and SM2.
Now that there's unlimited boost in XSP, the pony cars might be able to eventually get the SFCs allowed, as they're as wobbly as a noodle otherwise. Even more so than our cars.
