Translation guide
The back seat of a vehicle, typically a car. In Japanese, the most common term is 後部座席, but other expressions exist depending on context.
rear seat (car)
Referring to the rear passenger seats in a car or similar vehicle.
Standard term for the rear seat of a car. Neutral and widely understood.
Please sit in the rear seat.
The rear seat is a bit cramped.
More casual and general. Can refer to any back seat, not just in vehicles.
I put my luggage on the rear seat.
Loanword from English 'rear seat'. Used in automotive contexts, often in written or technical descriptions.
This car's rear seat is spacious.
The passenger seat behind the rider on a two-wheeled vehicle.
I went touring with my girlfriend on the rear seat.