(rs focus)check for over heating tend to run a little hot,worth getting a ggr(graham goode racing) temp gauge and dash pod not cheap but worth it to stop risk of poppin headgaskets.
check water pump and cam belt are ok service regularly and you be fine cracking car for the money cant go wrong and plenty of mods can be done too, make sure you run it on 97 ron not 95 ron !!