There are no manufacturers dumb enough to waste money in F1.
GT cars are nothing like F1 cars. Audi is smart in not joining. It would be an humbling experience. Look at Jaguar/Toyota/BAR-Honda. Renault being the exception, but they did buy Benetton. Porsche doesn't have the resources to compete.
GT cars are nothing like F1 cars. Audi is smart in not joining. It would be an humbling experience. Look at Jaguar/Toyota/BAR-Honda. Renault being the exception, but they did buy Benetton. Porsche doesn't have the resources to compete.