Board Thread:Game Discussion/@comment-89.77.155.66-20160214194708/@comment-26388545-20160214220330

My speed is 366 1/2 kph.

Top speed for the Porsche 911 RSR 2015 fully upgraded is 355 kph (specs here).

As Luccappe mentioned, you run Spa downhill (as in Circuit de Spa-Francorchamps). Once you get to the top of that looooong uphill climb, you round the 2 next corners, turn around and run full speed until you hit the wall at the very bottom (aim for the crane). Then turn around and finish the race. It's best if you turn off all assists.