For the main part of the body, draw a large rectangle that is not quite finished. On top of its right half, form a rectangle with a slanted left end to form the driver's-side windows. Above it, add a long thin rectangle that is slanted for the roof.
Use a small slanted box to form the windshield. Place a straight line from the left end of the windshield to the front of the car in order to form the triangular front hood. Sketch two circles for the wheels. Put an incomplete circle inside the large rectangle for the spare tire.