Rear end trunk
The term "backside" is typically written as one word.
derriere
They screw off from the backside.
backside
Mirrors with Backside light (Signal Lights)
it reached England in the 14th century from a similar word used in Normandy
A backside is the side of something which is opposite the front - or another word for the buttocks.
if you look from the backside of the car, it`s under the car right side.
Also known as back-door entrance.
backyard backside backward backpack backup
The "Excalibur".
The likely word is "convertible" (a car with retractable roof).The similar word is the adjective comfortable.