Late last year there was a very detailed early Seven kit available out of England. It was a bit too complicated (You start by building the metal frame and then you have to skin it) and a bit pricy given my level of model building competence. Sorry but I don't have the reference any longer.
These are some I keep at the office. 49 and 49B upper left, 72D and I think a 79 in center. Kyosho Seven in front. I've about 18 others, so we are close (for now). I'm looking for a 1/18 Eleven. My favorite is a 1/12 scale 72D by Tamiya. Also have a 1/24 Seven by Tamiya. Most recent addition is a 1/18 1960 Elite in white.
I have 25 Lotus slot cars in 1/24 and 1/32 scale: various Formula Jr., Lotus Types 16, 18, 19, 23, 25, 29, 30, 33, 38, 40, 99T; Esprit, Europa, Cortina. Most from the 1960's, 70's and a couple more recent. Manufacturers include Cox, Scalextric, Monogram, Revell, Strombecker, etc.
Lotus models are some of the most collectible slot cars, especially 1/24 Scalextric Lotus 38, 1/24 Monogram Lotus 38, Strombecker 1/32 Lotus 38, Monogram 1/32 Lotus 33, Polistil/Policars 1/32 Lotus Europa.
Have a Testor's Lotus Type 29 gas powered/tether car.
Various diecast of Europa and Exige.
Always looking to buy Lotus 60's era slot cars.
Not Lotus, but have a cool Cox Chaparral 2E slot car in 1/24 scale. Has a working wing...flattens out when accelerating down a straight and tilts when slowing for a turn. One of the more collectible 60's era slot cars