I didn't know that John, I'd just assumed that because the lamp arrangement looked similar to the B&W road tests I've got then they were the same units. And although I've seen what I was told was an S1 1/2 I don't think I've ever seen a genuine S1 with the lights on.
Does that mean Lotus had a bespoke lamp unit made for them by someone or did they just modify these Carello units ?