Well heres my input as ive had a rs500 and now have a evo 6 it all depends on what you want the car for if you want a car for a investment then that maybe a rs500 but just because its a rs500 dont think it will be any better drive than a normal cosworth if you want a car for every day and track days the evo 6 is miles in front even a escort cosworth is not up to it and before people spit there dummy out i mean both in standard trim a 7k evo is by far the better option