Name that sounds like a car (4)
I believe the answer is:
otto
'name that sounds like a car' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for otto that I've seen before include "German man's name" , "perfume ingredient" , "____ Preminger, US film director born in Austria" , "Reversible German" , "Rose produces this" .)