The most common and most likely answer to this crossword clue is the 7 letter word BRISTOL
I've seen this crossword clue in Independent
B
R
I
S
T
O
L
More clues leading to the result BRISTOL
- Moving right towards the front in restaurant, beginning to like city of fashion?
- Riots flaring in the middle of Dublin’s port
- City with old railway company first linked to Circle line
- Endlessly lively crowd around city
- Shakespearean character heading off for British city
- Endless stiff hair covering roof of odd car
- Sailing ship docked before many turned up in port
- City street covered by zip code for Luxembourg
- Port and cheese nicked, neither finished
- Remarkable bistro associated with large English city
Buddy explains!

The straight part
We know that "car" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case car = bristol.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.