Video: As if the McLaren P1 wasn’t beastly enough, the British hypercar manufacturer has announced a hardened track version — the P1 GTR — which is set to get its public debut at the Geneva Motor Show. In the lead up to the event, McLaren decided to dust off the spiritual father of the P1 GTR in the form of the old McLaren F1 GTR and pit them head-to-head on a track. The result is a flurry of amazing sounds that can only come from two of the best hypercars ever made.