WATCH: Red Bull F1 car vs BMW bike in epic slalom race

Former Red Bull Formula 1 driver David Coulthard is challenged by motorbike racer and television presenter Guy Martin to see who is quickest through a slalom race.

Coulthard, who drove the Red Bull car in Cape Town in June, takes on the slalom first and the Martin has a go on a Tyco BMW superbike.

The caption of the video reads: "Guy Martin and his Tyco BMW Superbike take on David Coulthard and a Red Bull RB8 Formula 1 car in a series of head-to-head challenges, and explore the science behind their incredible racing machines."

Who will win? Watch and find out: