I've just uncovered a Lotus publicity shot of an Eclat 520. This is the first time I've seen the 520 without additional options:
(Courtesy of Eddie Clarke, former Lotus employee)
The sharp-eyed will notice that this car has the 13" steel wheels with chrome rim embellishers, a single tailpipe and no door mirrors. Presumably it was so fast it didn't need them!
I don't believe this picture appears in any of the books or magazines featuring the Eclat; it is certainly the first time I've seen the Eclat looking like this.
More Eclat pictures needed!
Cheers, Richard