6. A car manufacturer uses durable but lighter materials that reduce the mass of a car by 150 kg. If the new design is otherwise identical to the old design, how will the new car compare to the old car?
a. It will have a greater gravitational attraction to the road.
b. It will require more fuel to operate.
c. It will need lesser force to move.
d. It will release more gas emissions. 7 refer to the illustration below​