When I started on YouTube in November 2008, my first video was simply an introduction of myself. I would say maybe you should share some thoughts of yourself as a racing/driving gamer. Nobody knows you, so I think it's best to set up kind of an introduction. The next video should be you simply playing one of the aforementioned games. Alternatively, you could make your first video about whatever game you like the most of the ones you mentioned, and use that time to share some thoughts about yourself and your gaming ways.
It's all up to you, and I am just speaking as a veteran of the YouTube circuit.