The McLaren 720S currently sits at the top of the supercar heap when it comes to straight-line top-end as bought off the showroom floor. A 4L, twin-turbo, V8 pushing out 720PS (710HP) in a relatively slippery shape has a way of motivating things quickly. Bigger turbos and recalibration push it even higher, with a 720S having trapped 179mph in a ½ mile, but we’re getting ahead of ourselves. I happened to be at World Motorsport (MotoIQ AWD dyno of choice for testing) and they had an atomic orange colored 720S on the lift with panels removed. So, of course, I had to go in for a closer look!