Lib Dem Jim Hume gave evidence to Holyrood’s health committee, who are looking at the issue.
The politician provided information taken from a number of respondents to his consultation on the Bill.
And he argued for the protection of children’s health from the effects of second hand smoke, enforcing the Bill, and the necessity for legislation in bringing more understanding of the detrimental effects of second hand smoke.
Mr Hume said: “My proposals to ban in cars with children present would give every child the freedom to lead a healthy life if they choose to.
“60,000 children each week are exposed to second-hand smoke in vehicles.
“It’s not fair that a child should be cooped up in a smoke-filled vehicle during the school run. Those children cannot change their means of transport, let alone take steps to immediately remove themselves from the uncomfortable confines of a smoke filled car.”
He added: “We have a moral duty to end the 60,000 journeys taking place each week in Scotland where children are being exposed to the damaging effects of second hand smoke in the enclosed space of a vehicle.”
