My mate got one brand new and the head gasket went after only 12K luckily it was still under warranty. I had a 75 lovely car but same problem so in my opinion i would agree with Fanriffic have a look at the MX5
As above, plus whilst most parts are available, we are having a nightmare sourcing some very basic parts when they need repairing.
Stay away - buy anything else.
And let's not forget the depreciation - not the same model, but I saw a 55 plate MG/Rover/Whatever it is this week 75 for �1000 in my area - average mileage, good condition - problem is, no-one with any sense wants them