There is different types of the GT40. Disregarded the prototypes there are 4 different types. Maybe 5 if you count the continues versions. Also there are versions with different air intakes, engine and widebody both for racing and street. My choice is the MK1 that in my eyes the nicest and also the only one that did win the LeMans twice (1968 and 1969) Below you can see the different types.

MK1

MKII

MKIII

MKIV