Thought Arizona was all arid vanishing-point desert roads? Dan Trent goes off-piste to discover a hillier, twistier side…

Packing for a road trip requires a deft touch. It’s hard enough in a hatchback, but imagine having to squeeze a week’s worth of gear into the awkward-shaped spaces of a supercar. One percenter problems, eh? As fortune would have it these car makers for the rich and famous have got you covered.