It had a dropped and cross-braced frame under the new bodies.

Austin had redesigned the back axle relocating the propellor shaft and together with height saved by the new dropped cross-braced frame something like 7 inches was able to be removed from the car's overall height.

Located in the south-west corner of the site, the St Lawrence Police Station and former Courthouse is a single story, "T-shaped" timber building, with an exterior cross-braced frame supported on low stumps.