Saloon, limousine, landualette.

The Double-6 scaled down, but all the complexity's still there: they've just used 1928 16hp blocks instead of  the 25hp type. Owner-driver saloons credited with 5-75mph in top even on a 5.14 axle, but oil consumption when new was a daunting 750mph. Wheelbase options give up to 1451/2ins, and some late ones have Fluid Flywheels.