Noun
taillight (plural taillights)
One of a pair of red lights mounted on the rear of a vehicle, so it can be seen from the rear at night.
For 1936, the new Airflow-inspired 302 (which ran until 1938) and a 402-based large model, designed by Andrean, featured a vertical fin and bumper, with the first high-mounted taillight. Source: Internet
Only the front end and horizontal taillight bar designs were retained for the final car. Source: Internet