Tyre sidewalls

[twoblacklines]

So I want to get some new tyres for my A3 and it seems I have the choice of quite a lot.

Looking at Continental SportContact 5's. BUT I can get either XL or normal, XL being stiffer sidewalls.

What are the advantages of this? my car is an SE so 17", non-low-profile tyres. I want low road noise and supreme comfort.

Thanks

[twoblacklines]

I just typed the number plate into blackcircles and it came up with those choices.

The Audi OE symbol is also next to the one without the XL (but is £30 a tyre more???) should I have any issue choosing the non Audi OE one but otherwise same specs?

The profile, the Y and the number are the same but the stats are different? Bit confusing...

here is a pic

[twoblacklines]

By low profile I mean 35's, these are 45's. My s-line had 35's I think and it was terrible!

So I still have no idea what tyres to buy for my car?

[twoblacklines]

4 Goodyear Eagle F1 Asymmetric 2 225/45 R17 91Y Ordered, fitted, balanced etc for £365. Having them done tomorrow if time allows.

Thank you very much to everyone who helped