No swapping once Q2 has started currently I believe. We could just move that rule back on to Practice too which, frankly is less a practice session for people and more a chance to get warmed up. Practice and car choice generally having taken place before for me
We don't currently have an explicit rule about it, athough leaving and rejoining unnecessarily, especially during qualifying, is obviously frowned upon. Hopefully the points system will take away the incentive to do so; one possible solution is to award more points to a driver who beats a faster car using a slower car, rather than ust using a static points multiplier.
