A regular customer of ours runs this 924 carrera GT in the MSVR championship. He was due to race on a Saturday so opted for a quick test session the Wednesday before. The car arrived with us on Wednesday afternoon with an odd misfire and an hour later we had found a hole in one of the pistons. Not wanting him to miss out on any racing we set about stripping the engine down. By Friday lunchtime the car was running again and he made it to the race on Saturday.