The stats and price list are below.
The 4.4 litre twin turbocharged xDrive50i looks the most fun and presumably comes in colours other than brown. Mind you the M50d looks pretty awesome too. It has a three-stage single turbocharged 3 litre diesel but with an humungous 740 Nm (546 lb ft) of torque should shift its bulk pretty rapidly.
BMW have only supplied the weight for one model - the x30d weighs 2145kg. It's still a heavy old beast.