This is a comparison between my best time so far with my Mclaren 600lt and my Porsche GT3 RS 991.1. I took the cars on two separate days. The time in the Porsche is the optimal lap at 2:40.8 (my best is 2:43). The best in the Mclaren so far is 2:34.5. My brakes on the Mclaren were totally smoked after the end of the track day. The pads were gone and they ate into the rotor and the calipers experienced some melting. I had to replace the whole system. 

After doing this comparison I know I can improve my time in the Porsche on few of the turns. I can be more aggressive and go faster. I cannot beat the straight line speed of the Mclaren 600lt though. I will upload a new video of the GT3RS after I hit the track again next week.