Turning to USA for cars? (5)
I believe the answer is:
autos
'cars?' is the definition.
('auto' can be a synonym of 'car')
'turning to usa' is the wordplay.
'turning' indicates anagramming the letters.
'to'+'usa'='tousa'
'tousa' is an anagram of 'AUTOS'.
'for' is the link.
(Other definitions for autos that I've seen before include "Cars" , "Religious dramas" , "Freeway traffic" .)