I downloaded the newest version to speedrun and when I hit the wall with my boat it doesn't clip through. I have hit it from every angle and driven into every part of the wall and have copied what speedrunners do but it wont let me through. Do I need to press a button or whats going on?

When you hit the wall you have to exit the car using E at the same time.

Tried 20 times and did many angles while pressing e exact same time when crashing. Might be patched anyone else?

Its not patched you have to be parallel to the wall, to the side of the boat opposite of where crabs is sitting and then press E to spawn from the left of the boat AKA behind the wall. 

you can also use this to clip into any other building, so you can practise on other structures before trying to speedrun.