Bulstrode

Bulstrode is an old, bad mannered, motorized sea going barge. He's only happy when he's carrying a full load of cargo -- otherwise, he's grumpy and rude. His moaning and groaning soon got him in trouble when Percy and some Troublesome Trucks taught him a lesson.

Fun Fact: Bulstrode is a motorised, self-steering sea-going barge as can still be widely seen in general maritime use.