Forgestars are about as inexpensive as I would go. The F14s in 19X10 and 19X11 are 24lbs and 26lbs. A little less than the OEM ZCP wheel but with the more aggressive offset and wider widths. Not to mention they are a pretty strong wheel.
2013 M3 Coupe-MR/BLK ZCP, ACM test pipes, BPM Stg2 dev. tune and Megan catback, AFE Stg2. with C/F elbow
Previous rides: 2011 M3 Coupe-MR/Blk
2007 Porsche 997C2S Speed Yellow/Blk sport seats
2004 BMW M3 Imola/Blk