A number of vehicles used in the series were not on sale in the year being depicted or are on number plates which do not match the year of manufacture for those models. The Ford Sierra Mk2 was not introduced until 1987 and would not be sold on a "B" prefix plate (1984). The Ford Orion Mk2 was not introduced until 1986. A Volvo 740 is shown using a V suffix number plate (1979) despite the model not being produced until 1984.