Motorway MX5

[junglie]

First post here so I will keep it brief. My wife will be doing 500 motorway miles per week for the next few years. We may be moving abroad after then and do not want to spend large amounts of cash to buy 2 brand new cars and then get hit with depreciation etc. As a fun car, is an early Mk1 car that will cost less than 2000 (pound key not functioning!) be reliable and up to the motorway job? I know much is based on condition, engine size and history nbut just looking a general point of view. I know a mondeo or vectra etc is a good choice but a little dull!