Opel and GM Parts Compatibility?

I drive a 2000 Opel Vectra Combi (1.8 liter, 16 valve). I would like to be able to order parts from the U.S. because of the Euro conversion rate. I researched it a bit and found that the 2000 Saturn L series wagon shares the same platform with the Opel. Does this mean some of the other parts such as brakes, belts, etc. are compatible? Or is this just the chassis? I have asked GM, Ac Delco, Opel, and others and I always get the wonderful answer, "I don't know" with a suggestion to ask someone else. Thanks! Hummer Parts GM Parts online and at an affordable price. GMPartsDirect.CO will not be undersold by any other GM parts dealer whether your are shopping for original GM parts for your GM car or truck or you have a friend who has a Hummer car we can source it.GMPartsDirect’s prices are far below wholesale and we offer fast shipping & handling. You will find affordable GM Parts and Accessories. Are you in search of original equipment [[http://GMPartsDirect.co Chevrolet parts]] or [[http://GMPartsDirect.co GM accessories]]. Well, you’re on the right track by at least utilizing the internet. There are a abundance of [[http://GMPartsDirect.co Saturn parts]] suppliers out there. The best [[http://gmpartsdirect.co GM Parts and GM Accessories]] dealers are advertising for your attention. The ads found at the top of Google, Yahoo, and Bing for Chevrolet parts are serious about selling to you and are serious about discounting their [[http://GMPartsDirect.co Chevrolet parts]] . Remember to shop arround and don’t be afraid to call and ask questions about shipping and return policies. Any reputable retailer will have their policies posted on their site. Remember, genuine OEM parts, made by the manufacturer, are the best parts for your vehicle. Start your shopping for GM parts online at catalog.gmpartsdirect.co .