The S-Function is the latest creation to grace our forged wheel lineup. It’s an offshoot of the TRAKfunction series and offered at the same entry-level price point of between 4-5k MSRP. This wheel offers a flat lip, rather than a step lip (on the TRAKfunction). Available now in sizes 17″-24″ from any of our authorized dealers! Check out this new photoshoot on the ADV.1 S550 with a 22″ set of ADV5 S-Functions!

More info on the S and TF lines can be found here for anyone who'd like to learn more:

ADV.1 - Technical Specs - TRAKFunction

 

Those wheels really completes the car's mobster look

 

Nice.