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.

Of the 11 cars we’ve gathered for this McLaren megatest, the 540C and 12C certainly aren’t box-office. In fact, rubbing wheelarches with the likes of the F1 and P1 GTR, they are supporting ...

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.