The Buick Reatta may not be your best choice. In general Reattas are reliable if they have been well maintained but they can be a headache to troubleshoot for someone not familiar with them. The problem you run into is trying to find a mechanic who knows how to work on a Reatta. Most mechanics no nothing about these 30 year old cars. This website has lots of How-to guides to help with repairs as well as people on this forum who are willing to help but there is just so much help you can give when sitting behind a keyboard. This article was written for people looking to buy their first Reatta. You might find it helpful: What should I check when buying a Reatta?