Conveniences
Bicycle: bicycle is less convenient.
Car: car is more convenient.
Speed
Bicycle: bicycle moves slower.
Car: car moves faster.
Sitting capacity:
Bicycle: a bycycle has only two seats.
Car: car has at least four or more seats.
Wheels
Bycycle: a bycycle has two wheels only.
Car: a car has four wheels.
How to ride or drive
Bycycle: a bycycle take muscles force to move while
Car: a car has fuel engine and consumes petrol or diesel to move on road.