First of all i must say that this one was completely illegal thing!!
i were in passenger of the Tesla who were driven by a friend, but it was scary and dangerous as fuck!! This mustn't be reproduced in real LIFE, if no serious skills from the drivers and optimal conditions!!!
Both guy at the wheel do racing in LMP (tesla driver) and rallye WRC (Mercedes driver)!

Both cars on Michelin PS4S, drift MODE activated on the Mercedes, TRACK MODE V2 on the Tesla with repartition 90% REAR 10% FRONT (completely adjustable!!) full esc disconnected on both car, battery was in overheat on the last part of the hill for the tesla....but the AMG has got one engine OIL temperature alert aswel at the same point :-)

The battery became again in green after 2min of cooling down, same for the Mercedes

Start of the hill climb 78% battery in the tesla, arrived on top = 46%, when going down, then reloaded to 57% due to regeneration with the brakes!

Both car are amazing for mountain road and canyon!! I can' decide which one to take....and you which one would you choose? :-))