We ran an actual race day with this class and had a blast. With 13.5 1S the cars are deceptively fast, but allow for great racing. Everyone is running Schumacher SupaStox at the moment, but always room for a Mardave or TIC. The cars can take a beating and keep on running if the occasional accident does occur. We now know the best kept RC secret the UK has has been holding back (or we've been oblivious to). If you have a chance to drive a GT12, do.