2005 S4 B6 Cabriolet 18" Wheel Offset
 

Hello all: the title pretty much says it all. I would like to upgrade my rims (I can't bear to part with this car, even though it is costing me $5-10 thousand a year in repairs...). My long ago recollection was that the offset is 45mm, but all the wheels I've looked at online are fitting a 35mm offset to this car. Does anyone know this specification for sure? My OEM wheels are 8x18 H2 ET45, 8E0 601 025L. Thanks very much!