An 82-year-man has died a week after a crash on the approach road to a service area car park on the M5 motorway.
The car clipped a kerb and ended up on its side in a ditch at the southbound Michaelwood services last Tuesday.
The 44-year-old driver of the Proton sustained minor injuries, but his father suffered serious chest and abdominal injuries.
Both men are from Tividale in the West Midlands. Gloucestershire Police continue to appeal for witnesses.