At first sight you would say it is just another racing game. Make sure not to skip the intro, and you will change your mind. Honda Formula E is an advergame launched in Japan to teach people how to drive with an eco-friendly attitude.
In the game you don't have to use the steering-wheel, but just the brake and accelerator to find the ideal speed to drive in the city, saving gasoline, and therefore saving the planet.
But as I said, the game is not the best part of the website. The intro video is simply fantastic, very funny, very cheesy... very Japanese. They re-created the energy and the experience of a Gran Prix in the bedroom of a man of the street taking the up the challenge on the Web. If you take a look at the screencaptures I pasted into this entry, you'll immediately understand what I mean :-)