Caroline is a vintage car that four cricketers hopped into after their ball fell into Stepney's goods train and he chuffed off after the signal went down. This caused a chase along the road and railway. She later overheats when the train is disassembled at the yard. The car was then put onto a wellwagon with a brakevan in tow for the cricketers and Stepney took them back to Elsbridge cricket field where the game ended with an exciting finish. She refers to her driver as "Master" but doesn't like the high speeds from her or else she overheats once again. She dislikes engines until she changed her attitude towards them as appreciated and also being calm in nature.