Chuggington - Brewster - Die Cast Metal Engine - Learning Curve. Brewster is a solid diesel-electric train built for heavy loads. He doesn. ó. t always understand his own strength, which can make him a bit awkward and clumsy. He is very dependable and can always be relied on in a crisis. óîa tower of strength. One of his catchphrases is . óìHonking horns!. ó Diecast engine with easy Coupling System to connect and play to ensure engines never detach from each other.