those dimensions are exactly the same as B5 S4 wheels, so yes they should fit just fine.
One thing to note, is that they changed the centre bore size on B8 A4's from 57.1 to 66.6mm, that means the wheels will fit your car, but wont locate correctly on the hub, which can make them a bit tricky to fit.
You can always get some spigot rings turned at a machine shop to centralise things, and it shouldnt affect anything once the wheel is bolted up.