It's got a plane, a submarine and hair-frazzling explosions. As the Fast and Furious phenomenon spawns a live show, we go behind the scenes to meet the drivers and crew at the wheelThe Liverpool Echo Arena looks like it is in the grip of a military coup, one in which some international playboys and some camp policemen have unaccountably become embroiled. There are toolkit buggies and gigantic tanks, slicked-up sports…