You've bought a 5 year old Clio 197 with no history? I hope it was cheap!
It's due its belts around about now (it's 5 years old TODAY, happy birthday to your car) so if you don't have any proof of them being done then get it done soon. Other than that it's the same as any car, if it drives ok with no knocks or bangs then I wouldn't worry too much about history. I personally buy my cars based on there current condition, not what they might have had done 3 years ago.