A drunk mother piled 10 children aged from one to 10 years old into her car but only put a seatbelt on the youngest child before driving off and crashing at high speed, a court heard today.

Three of the children were seriously injured in the crash when Tanya Chilly lost control of the Mitsubishi Pajero and the car rolled.

Car flipped... Tanya Chilly. Credit:Joe Armao

Chilly, a mother of seven, pleaded guilty in the Melbourne Magistrates Court today to three counts of dangerous driving causing serious injury, nine counts of failing to ensure a child was restrained in the car, one count of driving unlicensed and one count of drink driving.

She faces a maximum five years in jail.