Jody Lift won SSB at the Runoffs in a VW GTI VR6 (A3 model, don't know the year) a few years ago, but he lost the win in the Tech Shed.
Heavy front-wheel drive cars, no matter how much horsepower, don't seem to have what it takes against the current generation Mazda Miata which is dominating SSB. This year's Runoffs SSB race was lead for a while by a '99 Acura Integra, but he was pounded on by the Miatas and ended up off course. There were a couple of late-model Honda Preludes entered. One finished 4th after the post-race penalties were handed out.
As for driving the race car to the track...Just recognize that you risk having your ride home from the track rolled into a little ball. Forcing yourself to load tires, tools, whatever spare parts or supplies you choose to take, driver's gear, and a change of clothes into the race car may be an exercise in frustration. And if it rains at the track, you'll be forced to sit in your race car while your stuff gets wet unless you load it all back into the car. Don't forget that the mandatory roll cage will limit your in-car storage options somewhat. I'm not saying it can't be done, just be aware of the limitations.
Bob...