bucket seat
US /ˈbʌk.ɪt ˌsiːt/
UK /ˈbʌk.ɪt ˌsiːt/

1.
asiento de cubo
a single seat with a contoured shape, often found in sports cars, designed to hold a person securely in place
:
•
The sports car had comfortable bucket seats.
El coche deportivo tenía cómodos asientos de cubo.
•
He adjusted the bucket seat to his liking before driving off.
Ajustó el asiento de cubo a su gusto antes de arrancar.