The number plate on the Mercedes-Benz changes from the time it was stolen to the end of the film. This could indicate that it was changed to disguise its identity, which is not shown in the film, or that two identical cars were used.
Oliver's Wharf, the building used for the exterior shots of Emory's apartment block still exists although much of the surrounding area consisting of warehouses and industrial units were cleared during the regeneration of the East End of London from the 1980s onward.
Emory's apartment is used as David Galaxy's apartment in Confessions From The David Galaxy Affair (1979)