Chopping: To 'chop' a roof the pillars and windows are cut down, lowering the overall roofline. 'Chopping the top' goes back to the early days of hot rodding out here – reduce the frontal profile of a car and it should go faster. Some racers on the dry lakes out in the nearby Mojave chopped the tops of their cars so much that the windows were only a few inches tall – you got your 'mail slot' windows. Roof chopping became popular with drag racers for the same reason. The first roof chopper is considered to be Sam Barris, who chopped and customized his brand new 1949 Mercury. Barris also pioneered a more advanced form – the B-pillar is removed and you get a 'pillarless' hardtop.
Braving the terrors of the black chair, comedian Omid Djalili, Charlotte Crosby, Zoe Williams and James Haskell are the first contestants to face John Humphrys' questions in a new series of the quiz.
Channeling: To 'channel' a car the body is lowered over the frame by removing the floor and refastening it higher inside the body, so the body rests closer to the ground without altering the suspension. You cannot do this with today's cars that have no ladder frame – now everything is all one piece, welded together. But with the older cars 'channeling' was cool – it had the effect of giving the car body a more massive appearance. Channeling is still popular with the hot rod, 'leadsled' and mini-truck enthusiasts – the truck guys call this a 'body drop.' But you need a 'body on frame' vehicle to work with.