Solved

List of bugs I got

1 Ads button is inactive, so I can't watch ads (I know that there is a separate thread, but im unable to watch a single ad at the moment) 

2 I've occasionally bought parts instead of engines, because there is a huge ping presented in many cases while tapping on different tabs. Not many tokens spent but could have used them other ways. 

3 The sponsors list is unscrollable, so I spent 15 mins struggling to choose the one I wanted. Didn't get how I managed to do this, but I could hardly do it again. 

4 Last race one of my drivers did an automatic pit stop at the last lap due to some glitch as it was enough fuel to finish the race. 

I want to ask you if you please can make a treat for every seperate bug, like here. This will make it easier for us to help you.

Hi Michael, I've reversed the parts purchase.

The 3rd bug you've listed is very interesting. If you could make a video of this on a new account, it'd be very helpful.

I recommend you follow the link Rik posted so reporting individual bugs can be as organized as possible.

I made a video about the 3rd bug, where should I send it?

Hi Michael, the video should be uploaded to Youtube and the link shared here.