Audi B8 S4 with the concave Avant Garde M540 Wheel Model: Avant Garde M540 Finish: Polished Copper Bolt Pattern: 5×112 Vehicle: Audi B8 S4 « Previous PostNext Post » By: Artakn4sm | December 10, 2015 in Announcements, Latest Products, Pictures, Wheels tags: audi, audi b8 s4, avant garde m540, avant garde wheels, polished copper