If you look after your road tyres they will be fine. A heavy road car will shred road tyres if you stay out too long and abuse them. Do a couple of laps and come in will ensure they don't get too hot. It will also help preserve your brakes. Do 10+ laps and you oils find your tread peeling off a road tyre.
R tyres on a track are like winter tyres on snow. A revelation.
E90 330i SE Auto Graphite Grey Metalic