A 55-year-old man has admitted causing the death by careless driving of former Solihull News editor John Connor.
Lorry driver Anthony Rourke, of Mill Close, Heckmondwike, West Yorkshire, pleaded guilty at Reading Crown Court on June 2.
Sentencing has been adjourned until July 11.
Mr Connor, aged 75. from Solihull, was driving his Nissan Qashqai between junctions 5 and 4b of the M4 in Berkshire when his vehicle was struck from behind by a lorry being driven by Rourke. He was pronounced dead at the scene.
Mr Connor was thought said to have been returning home from a car launch event in Spain.
Following an investigation by Thames Valley Police Road Death Investigation Unit, Rourke was charged with causing death by careless driving.
Dozens of tributes were paid to Mr Connor, who used to run the Solihull News title and was more recently a motoring journalist.
At his funeral service at St George and St Teresa RC Church in Dorridge, the Rt Rev Monsignor Canon Daniel McHugh, who led the service, told mourners: “He always had an opinion that he put across with drama.
“Many will miss John, especially the family.”
The grandfather and father-of-two was a member of the Midland Group of Motoring Writers, the Society of Editors and was in the Catenian Association, an international body of Catholic laymen.
Rourke was bailed until next month.