I was toying with the idea of buying a used BMW or Audi someday, when I looked into it I was discouraged. My friend has an expensive BMW, big heavy car with a V-12, he told me that when his brakes need replacing he just can't change the pads, the pads and rotors come as one now, very expensive brake jobs. Parts and service very expensive. Unreliable translating to expensive trips to the dealer.
If I were to buy a Certified German car someday, all of this has taught me to pony up for the extended warranty.
I can't speak for their reliability, but it's a known fact that German cars, or any european cars for that matter, are expensive to service because of limited parts and service technicians knowledgeable enough to work on them. Fortunately, they don't appeal to me.
