One less 'Mother of the Year' contestant.

West Valley City police have arrested an 18-year-old man -- and his 35-year-old mother -- charging them both with car theft.

Police were called to 36th West, 41st South -- early Thursday morning -- but as they attempted to stop the vehicle, the male drove off, with mom in the passenger seat, at a high speed.

After police caught up to and cornered the vehicle, the driver allegedly rammed the squad car -- and mother and son fled on foot.

Police say the man suffered injuries, when a police dog caught up to him.

Investigators say, the mother had also been wanted on previous arrest warrants.