In many countries, road signs are put up, requiring vehicles to drive at a low speed.

However, the military sometimes require very compact vehicles that can maneuver in limited areas.

This requires a sophisticated communications network, and efficient and fast vehicles.

California requires vehicles sold there to keep pollution well below Federal limits.

Another is to dramatically increase the use of E85, which requires special flex-fuel vehicles and a separate supply infrastructure.

In the game, the player is able to make offers to various local businesses requiring vehicles.

However, this also requires additional vehicles, thereby increasing capital costs.

All space of the P40 hull was dedicated to supporting the gun, so the ammunition and crew would have required additional vehicles to be moved.

Safety and comfort aside, some of us require large vehicles because we are large individuals.

The standards also require "zero-emission vehicles," presumably cars that run on electricity.