Like other German motorists, Andreas Foerster has something of a love affair going with his car. But after years of stoically paying $70 or more to fill up the tank, Foerster is fed up and not going to take it anymore. He has joined a fast-growing protest movement called Jetzt Reicht's! (Enough is Enough!) that is campaigning to deflate gasoline prices, which have soared in recent months. Germans have long tolerated prices at the pump that would provoke uprisings in the United States, where gasoline costs on average less than half what it does in Europe.