Track Torque in Tockwith (Near Wetherby) Are your best bet but not cheap!
They charge £80 for the first hour and £50 per hour thereafter but a Clio shouldn't take more than 1 hour, Just give everything a blast of WD40 before you go so that it's easier for them to adjustCheers Guys. Some good recommendations here.
How much were Track Torque Ash?