It’s a well-known fact that Audi has been experimenting with alternative powertrain methods, specifically its EV e-tron program. Although the R8 e-tron project was recently cancelled
, the German automaker is now reportedly developing a fuel cell-powered A7. Autocar claims that this experimental A7 could possibly be ready for initial testing by August and, if successful, could even make it to market. So what exactly are fuel cells? Basically, they "generate electricity and heat through an electro-chemical reaction between the fuel and oxygen."