Yes..!! I Think so, that there is a coilover kit for the new cupra, cause my choices was KW Variant 3, Eibach Pro-Street Coilovers, H&R Coilover setup and Billstein PSS10 Coilover setup...
I Choose H&R Coilovers, which can lower Cupra approximately front about 40mm-80mm and rear 40mm-80mm..!! Also at the same time I replace Oem swaybars with H&R front and rear AntiRollbars.
My opinions is that, you could lower your car with only springs, but it's not ever as good as the hole suspension setup.. The Shocks arent designed for these springs and the shocks working area change for different level.... If you worry about money, just buy cheaper kit with shocks and springs..!! Oem Shocks can handle these new lowered springs, but not for long and the handling is always better with full suspension kit than only with springs..!! Springs works just find, but you should understand that its working only for some time...