In this video I'll show you a 80-300 km/h acceleration in a tuned BMW M4 F83 Convertible. This car is fitted with a Stage 1 ecu re-map and a full Milltek exhaust with catless downpipes. Follow me also on: - Facebook: http://www.fb.com/NM2255 - 2nd Car Channel: https://www.youtube.com/user/nickcarvideos - Instagram http://www.instagram.com/nicknm2255/ - Google+: http://plus.google.com/+NM2255 - Twitter: http://Twitter.com/NM2255