OK here I am!!

Kingers has nailed it I think. Must have dipping headlights and in the case of the RS those 'extra' lights are fitted where the optional(US)
lights are. Indicators have to be amber all round and at the rear spaced further apart than US models. If you have them fitted, modulating brake lights are a no-no.
UK RS models don't have reversing light; all four flashers flash together the same as the hazard lights but if you have a reversing light it must be linked to the
the reverse gear. Let's see...what else?
:clickpic:
View attachment 99162 This is a picture of my dear departed RS-S
Yeah! Side reflectors like on the cases in the picture must be amber......and you must have a rear reflector, reflective tape isn't adequate.
The MoT test on a Spyder can only carried out by a tester who has Class 3 certification and will cost you about £35.
If you have a 'straight through' exhaust it can be a problem but my Hindle went through OK (Tester's discretion).
Hope this helps a bit!