Found a review that was just posted today on evo.co.uk, pitting the GLE 63 S against the BMW X6 M.
A few interesting functions on the 63 S includes the springs that automatically lower the ride height depending on your speed, a necessity when all it takes to go from 0-62mph is a scant 4.2 seconds. It also handles very well on long curves with amazing traction that can be contributed to it's wide 325/35-section tyres.
It's price point is close to that of the X6 M and it's great fun to drive even if it's not as 'precise' as it's BMW competitor.
They don't go into detail about the differences besides the price and the finesse of both vehicles but it's still a good read if you're not quite sure what to look for when test driving the GLE 63 S Coupe.
Last edited by Benzinator; 09-10-2015 at 02:06 PM.