The SmartDrive (assist for high speed wheelchairs)

[LockH]

In the USA? Get `em here:
http://www.max-mobility.com/smartdrive/#mx2

[youtube]hzqVtGGJZEU[/youtube]

Speed: 0.5 – 5.5 mph
Range: 12 miles
Battery: LiFePO4 – 36 V & 3.4 Ah
Motor: 250 W Brushless DC
Push Activated Cruise Control
Bluetooth LE Drive Control
Only 12.5 lbs

(She's hot.)