Id138
A full-size car, the Alvis Speed 25, with its 31.48 tax hp engine, has an impressive transmission coined as "single plate clutch, separate 4-speed gearbox all-silent and all-syncromesh, centre change lever, open tubular propellor shaft with metal joints, spiral bevel fully floating back axle".
Alvis Speed 25 | transmission | single plate clutch, separate 4-speed gearbox all-silent and all-syncromesh, centre change lever, open tubular propellor shaft with metal joints , spiral bevel fully floating back axle Alvis Speed 25 | engine | 31.48 tax horsepower Alvis Speed 25 | class | Full-size car