Well to be honest doing burnout actually means car is slipping due to bad gearing and thats why cant translate engine power to road. Thats where Porsche cars with racing DNA comes in picture to race as fast as they can without slipping or wasting any HP in burnout.
On the other side, i know importance of burnout in non theory real life. Try pressing PSM switch off and hold for 10 sec and see if any wonder happen.....?