Benjamin Dalah, 21, of Edgware, had been awarded a first class degree in economics from the University of Birmingham and attended the ceremony with parents Nadia, 50, and Freddy, 53.

But on the journey home, a white lorry and Renault Clio hit their Saab convertible on the M6 at Junction 1 near Rugby, Benjamin and Mrs Dalah.

Mr Dalah, who was driving, survived the crash with minor injuries and was treated at Walsgrave Hospital.

He and his sons - Andrew, 26, and Josh, eight - have been comforted by the Edgware Jewish community.

Arsenal-fan Benjamin had recently returned from a holiday to Croatia and was looking forward to going to Thailand, before taking up a graduate job at leading consultancy company, Deloitte.

Iraq-born Mrs Dalah was the youngest of nine children and married Ben's father in Israel in 1979.

A man was arrested in connection with the incident and has been released on police bail pending further enquiries.