MP’s constituency car (4)

I believe the answer is:

seat

I believe this is a double definition.

'mp's constituency' is the first definition.
(I've seen this before)

'car' is the second definition.
(type)

(Other definitions for seat that I've seen before include "See 10" , "Eg, chair, stool" , "pew?" , "Take one and sit" , "Box ---, position of advantage" .)

I've seen this clue in The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.