Keith and myself had a fair number of those cars too, including the vintage Vanwall(can't remember quite how we came by that one). Not seeing the older Minis ie. the RX-motored ones without the flares. Also missing is the original, front wheel drive Mini with the tiny wheels.
I too noticed models (I know about) missing but its still a great and comprehensive collection of Scalextric images ... even with the other brands - like Slotit, Ninco, Carrera and SCX ...
Steve, you should delight yourself and buy a reproduced C2552A Vanwall F1 model by Scalextric