The Ezigrip electric bike rack for carrying ebikes on cars is great value for money.
 
Optional load ramp available at extra charge. 
holds 1 or 2 bikes
locks to bike frame
locks to towball
ratchet straps to quickly fit bike
padded clamp to fit to bike frame
additional webbing strap to reduce front wheel turn
folds away for easy carry and storage
single lever tilt for boot access when loaded and unloaded
4 function light board with 7 pin flat plug
integrated lever at towball mount
rubber sleeve on ratchet straps to protect rims and frame
 
Bike size: Adult and children bikes. Fits up to 1400 mm wheel base.
Allowable tire width: Up to 2.8 inches
Assembled rack dimensions: 1160 mm W x 700 mm D x 770 mm H
Rack weight: 21 kg
In the box: rack, lights, license plate holder, manual, cable ties, keys