To good to be true.
Check out this link... a godsend for people who tend to be "too gassy" in a car full of passengers.
Conversation may go something like this: Who Farted?
................Wasn't Me!
http://crave.cnet.co.uk/cartech/fart-powered-vw-beetle-tested-in-uk-50000253/?tag=mncol;txt
Yeah, and I guess it makes sense that it would have to be a convertible.
