Lotus loves celebrating milestones by coming out with special editions of Esprits all the time. There have been John Player Special Editions, Jim Clark Special Editions, 40th Anniversary Special Editions, etc, etc, etc. When looking at a used Esprit, don't let yourself be fooled by the dealer into paying too much more for one of these. Most of them are nothing more than a set of decals and commemorative plaques over a standard issue Esprit. When you think about it, Lotus built so few Esprits that every car is, in effect, a "limited edition".
The only major exceptions to the above statement are