If a car is traveling at the speed of light and the car turns on the headlight, what would happen? Would the headlight not turn on at all, would the headlight travel at twice the speed of light, or would the headlight act like a flowing sink flowing out light?

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?