I think it's a pretty good run! My menu management was pretty messy in the beginning because I didn't practiced it at all, but in race I think I was pretty fast overall.

There's still a lot of room for improvement: Intermediate 1 was garbage, I had a lot of troubles with the tornado in the Battery challenge, Monument Park challenge wasn't good either, I lost a race in the Rock Worms challenge (that's a big 2+ minutes loss, although it's still a whopping 15+ min save from the previous run where I lost many more times).

My upgrade strategy was to always upgrade the turbo first, and engine next, because both the Crusher and the Torq Racer gets more advantage from it (at least in early game, I haven't tested with high level upgrades).

I had a lot of time consuming traffic colisions, I need to stay further away from the opponents, especially when overtaking them.

The reason why I wiggle the directional wheels at the begining of each races is because Xbox 360 controllers are bugged in DR, the car steer itself like if I had deadzone issues, and the bug disappear after a few corners. Wiggling the directionnal wheels makes the bug disappear faster. The funny thing is that I'm faster with this controller than with my old one or the keyboard, despite this bug x)