21 Del. C. § 4186: Obstruction to driver’s view of driving mechanism.

(a) No person shall drive a vehicle when it is so loaded or when there are in the front seat such a number of persons, exceeding 3, as to obstruct the view of the driver to the front or sides of the vehicles or as to interfere with the driver’s control over the driving mechanism of the vehicle.

(b) No passenger in a vehicle shall ride in such position as to interfere with the driver’s view ahead or to the sides or to interfere with the driver’s control over the driving mechanism of the vehicle.

(c) Every person riding in a passenger car shall occupy a seating position designed and intended for that person’s use.