Talk:Speedrush TV Challenge - Season 2 (v5.6.0)/@comment-28169398-20171028170826/@comment-84.24.8.99-20171029185129

It's possible with only one gold upgrade for the drivetrain (plus the subsequent R$ upgrade), which is less expensive than the two upgrades you applied. It yields the most acceleration of the all the first gold upgrades.

I've tested it myself btw. The only part where I even needed any upgrade at all (had 0000000 until this stage) was the start. If you can make it to the first turn, the rest is doable. I did it with all assists off and found it to be quite easy.