Former kickboxer Suleiman Abdulrahim. Credit:Jason South

A Melbourne man who was speeding in a Ferrari when he lost control and hit three cars, killing an elderly woman, did not stop breaking the law after the fatal crash, a court has been told.

Former kickboxer Suleiman "Sam" Abdulrahim has pleaded guilty over the crash between his Ferrari Spider and three other cars that claimed the life of 88-year-old Muriel Hulett in 2015.

Ms Hulett never woke from a medically-induced coma after the Ferrari crashed into her daughter's vehicle at Reservoir on June 27, 2015.

"The accused lost control of his vehicle. It was travelling between 100 and 110 kmh in an area that had a designated speed of 60 kmh," prosecutor Raymond Gibson said.