Thanks for your feedback!
I will consider your suggestions for future game updates.
The restart is already being worked on for the next update.
As far as driveability is, some ships are better at cornering and not so good on the straights. So some of them hardly need the brake to make turns.
I really liked your ideas to polish the game, I believe that this part will take a little, but it will certainly have improvements.
Thanks again for the suggestions!^_^