Last generation Riviera was so long, 22 feet, that ONLY the G Body format could be used, probably the last of the G Body. For the final year GM took all the imperfections from previous years and tweaked them out for the 1999 model, 98 parts do not fit a 99, I have both. With less than 2000 built and after 20 years of national disasters and wrecks and engine failures not replaced less than 100 of these cars can be found! 10 years spent searching for 99s that are road worthy less than 50 found so far. Buy a car or buy a future investment? Have 4 to sell
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