Looks fierce 
Cam could do with coming down a bit if you ask me, is it on the harness bar? I think it should be at bit lower than or around your eye-level.
Darren’s going to fab a plate to mount it lower, the extended arm we used last time vibrated a bit too much so that spot on the bulkhead was our only choice for the sucker mount.
Yep, definitely needs to go a bit lower… car looks to pull well though! 
FWIW, I use a Gopro mounted on the harness bar with a Manfretto clamp like this :-
http://www.ebay.co.uk/itm/MANFROTTO-IN-CAR-VIDEO-CAMERA-ROLL-CAGE-MOUNT-/221204574029
We have a full cage though and the tubes all converge right in the centre.
Speak to the lads at Dogcamsport - I’m sure if you send them a pic of your cage they’ll sell you the bits necessary to mount a camera properly. The guy that runs it is a Lotus owner and very helpful.
Another Video from goodwood …
s1 sc Honda exige vs v6 exige, Goodwood - YouTube