Benjamin The Elephant Season 2 Episode 2 The Pink Car

Benjamin and Otto are given the Mayor's old car and want to repair it. Carla Caramba tells them about a rare, delicate flower in the Botanical Gardens which won't bloom because there are too many fumes from cars in the air. She organizes an inventors' contest for the environment. Benjamin and Otto immediately turn their car into a solar mobile, which is clean. But the Mayor wants to take part - and he uses unfair methods!