The most common and most likely answer to this crossword clue is the 3 plus 6 letter word TWO SEATER
I've seen this crossword clue in The Guardian
T
W
O
S
E
A
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More clues leading to the result TWO SEATER
Buddy explains!
The straight part
We know that "small car perhaps" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case small car perhaps = two seater.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.
What does TWO SEATER mean?
TWO SEATER noun- A vehicle with seats for two people (a driver or pilot and one passenger)