As Frank Murphy (Scheider) is taken to the top secret base where the 'Blue Thunder' helicopter was developed, the car follows a white/orange motorcoach through the gates. As the demonstration takes place in a replica street full of dummies, the helicopter shoots up and destroys a grey-painted transit bus - interior and exterior shots. After the demonstration a second silver/blue motorcoach is glimpsed.
When Murphy crashlands his helicopter in Los Angeles, he narrowly misses a small yellow school bus, an International Harvester Loadstar 1600