800HP Weistec W.4 Turbo C63S Mercedes 10-sec Drag Racing Drag & Track by turboandstance - October 28, 2018April 4, 2019 What a beast this C63s! It has a Weistec W.4 Turbo upgrade and full bolt ons which makes this C63S a 800HP beast thanks to DME Tuning. 140mph traps with an easy launch is incredible for this car and it is currently the record holding C63s with it s 10.4 pass! Leave a comment