Open-topped car (8)
I believe the answer is:
roadster
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">open-topped car</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for roadster that I've seen before include "An open car without rear seats" , "Open-topped car" , "sporty vehicle" , "Small open-top car" , "Old car" .)