In Brian's garage there is a wheel clamp which was used as part of the set dressing after it was removed from a crew vehicle. The van in question was immobilized by an illegal group of clampers in London's east end.
During the post production process the company computers were seized by the bailiffs. A couple of vital scenes and the majority of the soundtrack were lost. The film was completed by piecing together what remained on laptops and from earlier recording sessions.