Had this sitting nearby after it featuring in the 'Test you knowledge' thread and put it back on the car before it got misplaced.
I know that I'd have had no idea of where it was if you'd asked me, so now you know - extra hole in the front, nearside wing, near the bumper support.
(https://lirp.cdn-website.com/521a0932/dms3rep/multi/opt/outtemp1-1920w.jpg)
(https://lirp.cdn-website.com/521a0932/dms3rep/multi/opt/outemp2-1920w.jpg)
(https://lirp.cdn-website.com/521a0932/dms3rep/multi/opt/outtemp-1920w.jpg)