So my first autocross of the season is this Sunday and I couldn't be more excited. However, I found a rather terrifying entry in my class. I run in G Street, with my 99 BMW 318ti which puts out a whopping 138 HP, where everybody else and myself were bitching about the Focus ST being in our class with over 250 HP. The entry that now worries me is a 2015 Volvo V60 T6 which has over 350 HP!! Now I feel like this is just way too much power for a car in G Street so I went to check the official SCCA rules and there is no mention of the V60 T6. Is there any chance of me getting this thing out of my class come Sunday? Thanks for your help! Have a me autocrossing for your time.

Autocross classing question