Hmm, tyres are only supposed to last up to 3 years before the compound starts to degrade so there's little benefit in getting starship miles out of them unless you drive like the Pope.
Why you would put low resistance, hard compund, eco or cheap tyres on a
Cupra is beyond me. Why not go and put remoulds on a Ferrari? If you want to save cash, get an economy model.
Of course i'm not saying you need to spend £gazillions on brand tyres, but putting anything other than a sticky soft tyre on a performance hatch is counter-intuative, and that means 15-20K miles max out of fronts, perahps even as low as 6-8 if you enjoy yourself on twisty roads