NCT is a different product range (i.e., NCT's are not F1's.) Still a good tyre, I used to use NCT 2's on my Peugeot.
 
well i just ordered 2 gsd tyres but i said to the woman on the phone i want to order some good year eagle f1's and she said which ones nct or gsd
 
Don't see that a Leon would need the XL tyres, it is only a small car?

AFAIK the XL tyres are designed for cars similar in size and performance to the Mondeo ST220, performance cars that are large and would put more stress on the side walls.
 
ok still confused by this i currently have on my car Goodyear Eagle F1's 225/40ZR 18 92Y

I am about to have fitted Goodyear Eagle F1'S 225/40ZR 18 GSD3

What is the difference
 
Your current tyres maybe GSD2's nothing in it really.

I get mine for about £100 with fitting on 225/45/17 from MyTyres.
 
Paid £296 for 4

225/45/17 F1's GSD3

Cost me £35 to get them fitted.