Found this skip while looking for gaps in all of the invisible walls near the beginning area. I have not practiced it a bunch but I had ~10% success rate with this skip so it was pretty inconsistent, but hey maybe someone can do it better than me. Saves roughly 10-20 seconds (depending on how well it's executed) but it can also lead to you getting stuck a lot, if your car turns vertical on that fountain bit it's a bitch to get out. Also I had no car upgrades.

Edit: didn't realize it but SimpleUnit actually already found this. I will leave this up since I still think it's useful to have a slightly different method of doing this. His attempts can be seen at ~8:52

My Attempt:

SimpleUnit's video:

Faster time + More consistent Setup (also I upgraded turbo and mechanics of the duece). I added some ways you can free yourself if you get stuck vertical as that seems to be the biggest problem with this, and added a couple general clips of the skip itself. If you fall in the bigger fountain it can be really annoying to get out but you can drive out of it.