I have this wheel too - one of my most favorite mods... Yes - it's the euro M-Sport X3 wheel; same diameter is stock X5 sport wheel but much thicker rim; better leather; don't think heat is an option with this wheel; can't imagine getting a better price than you can get from BMW of Macon as LeMansX5 suggested - that's where I got mine - super guys down there in GA! I'd certainly recommend checking them out for the airbag price too or check ebay as others have suggested.

__________________
'08 335i Coupe - Barbera Red / Saddle Leather / Light Poplar Wood / 6spd Manual
Options: Sport, Premium, Cold Weather, Comfort Access, Active Steering (awesome!), Power Rear Shade, IPod Adapter, Navigation w/IDrive
Mods: M6 Wheels, Split Armrest, M-Steering Wheel, Euro Light Switch w/Rear Fog Lights, Short Shift Knob w/Matching E-Brake Handle, Clear Reflectors, CDV, Clear Bra

Retired:'04 X5 4.4i