All fine cars. I reckon you should go out and drive them - but before you do, make a list of what's important to you. If you want pure driving satisfaction, you make want to go for a Mk1 MX-5, if you like creature comforts then a Mercedes SLK may be more up your street. A car is only reliable as its previous owners, so check the history. Parts prices are a concern with any classic and can be hurt by the fluctuations in currency. You could always price up various items for your shortlist. For example, service items like spark plugs and leads, oil filter etc. Or items like brake pads and discs. But do also check out the prices of panels. Do you have a classic-friendly specialist nearby? How are you planning to store it? You'll need to take these things into consideration, too.