Two track monsters go head-to-head in a sound showdown: the McLaren P1 GTR and Ferrari FXX K. Hear the raw, unfiltered power of these ultra-rare hypercars as their engines scream on full throttle.

The GTR is wider, lower, 50kg lighter and more extreme in every way. McLaren Special Operations created just 45 P1 GTRs and ... builds with an intense hissing sound that grows ever more furious.

We’ve got a P1 GTR for two full days on a track I know as ... It’s not a beautiful sound, but the chaos makes even considering pushing this car to its limits feel very heroic.