Audi A4 18" S-line wheel - weight??

[rks838]

Hey everyone, I'm considering - sort of - a wheel upgrade, but have no idea how much my wheels weigh after looking all over the internet. I've got a 2006 A4 2.0T S-line Quattro, with 18" wheels like this. Anybody know the weight of these, or where I could find such info? Thanks!

http://cdn.motors.co.uk/d/used-photos/44299/400x/0/0/YH56GZT.jpg

[vangelis]

Is it possible to use the A4 2.0T 2008 wheels? They are 18x8.5 with the same shape of RS6 18" exactly. Is there any different in ET clearance or same? Is there any difference in weight specs?