The Emergency Squad was designed by Larry Wood. It is a fantasy design based on a heavily customized, hot rod-style fire engine.
It was first released in 1975 as part of the "Flying Colors" series. Model 7650 with Redline (RL) wheels is from this inaugural year.
This casting features a large, exposed chrome engine in the front, multiple water cannons, and a short ladder assembly. The original release was in red enamel with "Emergency Squad" and flame tampos. It has a diecast metal body and chassis.
It is similar in theme to other emergency vehicle castings like the "Paramedic" or the later "Rescue Ranger," but its hot rod styling makes it unique among Hot Wheels fire trucks.
After its Redline debut, it was produced with Blackwall wheels. It was also released in yellow. Variations exist in the color of the plastic ladder and cannon assembly.