I've always thought it reminds me of a Ferrari 246 GTS Dino more than anything else.
I found it interesting (and wasn't too surprised) that in the Lotus Elise Official Story book (p. 46), Lotus has on hand the following cars for inspiration: Lotus 23, Lotus Elan, Caterham Seven, and Ferrari 246 GTS Dino.
The general curves/voluptuous shape, small size, air intakes, sail panels, targa-roof, low stance, low weight/modest power, round tail-lamps, etc. - all join together to remind me of the Dino. As a Ferrari nut, I always thought Ferrari should have an entry level car (below the Modena) that is light and modestly powered, but Lotus went and built it!
Chris