Petrolhead finally has a year to take in every US motorsports venue (7,5)
I believe the answer is:
daytona beach
'us motorsports venue' is the definition.
(venue for NASCAR racing)
'petrolhead finally has a year to take in every' is the wordplay.
'finally' indicates one should take the final letters.
'has a year' becomes 'ayto' (I can't justify this - if you can you should believe this answer much more).
'to take in' becomes 'nab' (I've seen this in another clue).
'every' becomes 'each' (synonyms).
The last letter of 'petrolhead' is 'd'.
'd'+'ayto'+'nab'+'each'='DAYTONA BEACH'
(Other definitions for daytona beach that I've seen before include "US resort town - with 23a" , "Florida resort" .)