Top Gear review of the McLaren P1: The Widowmaker! In the world of cars, the McLaren F1 is legendary. The McLaren P1 is it’s successor. Without any hint of exaggeration, it’s probably safe to say this is the greatest automobile ever built. If you’re thinking to yourself, “But I hear the Porsche 918 Spyder is supposed to be pretty quick”, here’s a video of it getting murdered by the McLaren P1.