Board Thread:Game Discussion/@comment-32155055-20171231083952/@comment-190.194.221.236-20180905025712

I believe a simple solution could be a button right in the middle between the accelerator and the brake. When you accelerate the button is in gear up mode, but when you push the brake or release the accelerator it changes to gear down mode, and you have use both thumbs depending if you accelerating or breaking.