[JNoSol]

Is it forged or cast? If it's cast, steer away (I think AG are Low Pressure Cast). The minimum for BMW wheels should be rotary forged (i.e. Forgestar F14/CF10), ideally fully forged. Cast are too soft and heavy.

Example: 20" Stance Evolution weighs about 35lbs ($1500/set), ForgeStar F14 weighs 25lbs ($2,200/set), and 2-piece forged are even lighter + stronger ($3,500+/set). Unsprung weight and strength are crucial when choosing any wheels. You don't have much rubber ridding between the wheels and the road, strength is important even if you're just crusing.

Wheel strength hierarchy as follow (weakest to strongest): High Pressure Cast < Low Pressure Cast < Rotary Forged < Forged (3-piece, 2-piece, then mono)

Just my 2 pennies.