On this episode of Ignition presented by Tire Rack (http://www.tirerack.com), Jethro Bovingdon heads to the stunning roads of Scotland to try McLaren’s newest supercar. Just last year, the Coupé version of the 570S was crowned MOTOR TREND’s Best Driver’s Car against fierce opposition. Now it’s been given the Spider treatment and McLaren claim that thanks to its carbon-fiber structure, it loses precisely nothing in the metamorphosis. So is the dream of a convertible supercar with no compromise PR puff or a thrilling reality? Scotland’s wickedly fast and bumpy roads are the perfect place to find out.