Check this out, front is 20x9 ET 17 weighs 22 pounds, rear is 20x11 ET 33 23.8 pounds. 305 rear tires:
http://www.60-130.com/images/importe.../08/bmw1-1.jpg
http://www.60-130.com/images/importe.../08/bmw2-1.jpg
http://www.60-130.com/images/importe.../08/bmw3-1.jpg
http://www.60-130.com/images/importe.../08/bmw4-1.jpg
http://www.60-130.com/images/importe.../08/bmw5-1.jpg
http://www.60-130.com/images/importe.../08/bmw6-1.jpg
http://www.60-130.com/images/importe.../08/bmw7-1.jpg