Talk:Research & Development/Mercedes-AMG C 63 Coupe Touring Car 2014/@comment-27467554-20160624072901/@comment-26536836-20160629111215

Player's driving skill is quite different so I can't be sure how much you needed to upgrade.

But if you saw the youtube video, you probably need at least 422+(??) km/h so you need at least upgrade top speed, nitro(max), tires, drivetrain(pro) to maximize the top speed and increase the nitro duration.