Caroline is an old-fashioned car. 


When Stepney was visiting Thomas' Branch Line, some cricket players lost their only ball in Stepney's hay truck and roused the old car to wake her up and chase the Bluebell Engine in order to receive their lost ball. However, she broke down when she finally reached Stepney and could not continue. Ultimately, Stepney's driver and fireman forgave the cricket players, and Caroline, and brought the old car back home on a flatbed. Since then, Caroline is always happy when Stepney comes to visit Sodor!

Later on, the Fat Controller used Caroline to get to his wife's birthday party when his car broke down. Unfortunately, Caroline overheated and the Controller had to ride in George, then Thomas.

She has been seen with The Thin Controller's Children.


Caroline is old-fashioned, and it shows, but she is willing to help out as long as the heat cooperates! She does not like being pushed too far, as it causes her to overheat. She appreciates the engines on the railway, but would prefer not to race against them!