input: Alvis_Speed_25 | engine | Straight-six_engine Alvis_Speed_25 | modelStartYear | 1937 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 | wheelbase | 127.0 (inches) Alvis_Speed_25 | class | "Full-size luxury car"
target: The Alvis Speed 25's transmission system comprises a single plate clutch, separate 4-speed gearbox all-silent and all-syncromesh, centre change lever, open tubular propellor shaft with metal joints and spiral bevel fully floating back axle. The Alvis Speed 25 is a full-size luxury vehicle with a straight-six engine and a wheelbase of 127 inches and its production began in 1937.