Brain teaser for you.
The top pic is the '74 Group 2 Capri (note cooling pipes for radiators in wheel arches).
The bottom pic is a standard Capri.
Note the inner wheel arches on the racer have been replaced, probably with something from the Ford parts bin in 1973. My 1967/8 Allan mann escort built by Gomm used Transit inner wheel arches so I know this was relatively common practice.
Can anyone identify the inner arches in the pic?