Having a motorcycle and a race car sharing the circuit is a thing that has been done before on more than one occasion, even with MotoGP bikes, WRC cars and whatnot.The difference is that the two athletes will compete in more than a circuit lap. Martin and Coulthard will compete in "a drag race, a brake test, a slalom, a full circuit race - and physical and mental tests in the pit garages," Channel 4, which will broadcast the showdown, reports. The program is produced by North One Television and will be aired on March 17 ahead of the first race weekend."They will compete in physical and mental challenges, testing their fitness and reaction times and exploring the science behind their incredible racing machines," Guy Martin's social media team informs us.Coulthard will bring his V8 Red Bull Racing alongside his 11-strong pit crew, whereas Guy Martin will only take one person to the track, his most trusted race mechanic, to make sure his Tyco BMW S1000RR superbike works as intended.It's nowhere near the first time Channel 4 and Guy Martin are working together, with the Lincolnshire rider having hosted TV series for the British station. The competition between Martin and Coulthard will be only a part of how Channel 4 will launch the racing season."Amongst the features included in the first weekend’s race coverage will be McLaren and Jenson Button dropping into the heart of the action at Melbourne with a little help from the RAF - while Channel 4’s presenters put celebrities through their paces on the tracks, including Susie Wolff’s heart-pumping rides around Brands Hatch with British boxer and former world champion David Haye and actor and comedian Johnny Vegas, amongst others."Channel 4 also signed a three-season deal for broadcasting the Formula 1 events live. Ten Grands Prix will be offered to the viewers without advertising breaks during the main races, including practice and qualifying sessions each season.We remind you that Guy Martin announced he would not run in this year's Isle of Man Tourist Trophy , as he feels like there are more directions to explore because his "brain […] needs something else."As for the showdown, bets anyone?