I've just seen an advert on tv for a 1/18 scale spitfire partwork model.
unusual features were a base that has arms to move the completed model in several directions, it has working lights and a rotating propeller.
first part £1.99, remaining parts (I presume around 100) £9.99.
It appears to be this one;
https://hachettepartworks.com/spitfire-mk-ia/spitfire-mk-ia-issue-1