The rear suspension differs too - its 5 link instead of 4 link (UK spec)
The car broken in Scotland was an XR6 TF. There were 2 known TF's in the UK out of 500 made. These cars are distinctive - they are white with special blue TF stripes. TF stands for Team Ford.
Mid-June 1982 brought about the birth of the Cortina XR6 Interceptor. This was a real true blue Ford and has become a very sought after collectors item. This car included modified exhaust headers, camshaft, cylinder heads, high compression pistons, a 3.08 differential and, most important, three 42 Webers. This very special car also boasted 13" alloy rims. This combination became a legend on both race track and on the street. Only 250 of these were ever made.
A very limited edition was the Cortina X-Ocet. The car was similar to the Interceptor except for its being fuelled by a 450 cfm Holley
http://cortina80.co.uk/ford_cortina_xr6.htm