I'd go for something a little older, something that puts a smile to your face.. Something you appreciate and something to your taste.

That fiesta sure looks tasty.

When I was looking to buy one a year or two ago, I was told by quite a few people that they had issues with their injectors - found a few on eBay which had that same issue. Neighbour of mine and cousin hasn't had any issues with theirs... So maybe it was a dodgy batch same with the VW's? (Referring to the 3C Passats - not sure if any other models had recalls on the injectors)

Also, with the RX8's, I've found a few with engine weaknesses so walked away from them too. Not really a weekend toy mind.

If you're going to get something, read into their weaknesses and faults on specific forums and check eBay e.g. type RX8 Spares (or Repair) and read what common issues they have - its how I found out.