I think rear underrun protection and sideguards became mandatory in May 1983. https://www.legislation.gov.uk/uksi/1982/1576/pdfs/uksi_19821576_en.pdf https://ww

I think rear underrun protection and sideguards became mandatory in May 1983. https://www.legislation.gov.uk/uksi/1982/1576/pdfs/uksi_19821576_en.pdf https://www.legislation.gov.uk/uksi/1982/1576/pdfs/uksi_1982...