I liked the game very much. The concept is simple and quick to pick up. The car is easy to control and the user journey was intuitive. The idea of using a simple game to promote a marketing concept (in your case electric cars) is an intelligent approach to finding alternative markets for games, a market that I am sure is saturated and difficult to gain any traction in, might be an idea to send your link to marketing companies to see if they would be interesting in sponsoring a commission.