NC-GTI, I haven't been in a VW since my '82 Rabbit back in the mid 80's but a good friend who's owned a Corrado, Rabbit, Fox, Jetta and now a GTI has had too many battery failures and his recommendation of the Optima battery is just some good info I'm passing along.
Pros: good info, security
Cons: too many failures
Vehicle:
Volkswagen