Both things are using as convince.
Both use the petrol.
Both run on the road.
Both have the engine.
Both have the brakes, gayer and accelerator.
Dissimilarity
Motor cycle covers very small space but Car covers big space.
More persons can travel on the car but Motor Cycle is specific for only 2 persons.
Motor Cycle has 2 wheels and a Car has 4 wheels.
A person is safer in the car but less safe in Motor cycle.
A Motor Cycle use for the short distance but a car use for the long distance.