The film was refused a screening at the New York Film Festival because it was deemed too controversial, and likely to incite racial tension. It wasn't released in the United States until 2019.
The car [VPM 213H] Blue rides in, with his brother-in-law, is a Ford Cortina whose date of first registration being 24th March 1970 and has a petrol engine with a cylinder capacity of 1599. Data for last "Date of last V5C (logbook) issue: Not available", with a "Tax due: 1st May 1984".
The police car [TYR 785M] is a Hillman Hunter whose date of first registration being 14th September 1973 and has a petrol engine with a cylinder capacity of 1725. Its last "Date of last V5C (logbook) issued" being 10th June 1986 with a "Tax due: 1st November 1986".