Selespeed


Selespeed is the name of an automated manual transmission used in Alfa Romeo cars, developed by Italian company Magneti Marelli and made by Graziano Trasmissioni.
The Selespeed is an automated manual gearbox with an electronic clutch. In its current incarnation, it can be operated via paddle-shifters from the steering wheel or via a "joystick" like a sequential manual gearbox. The right-hand paddle-shifter shifts upwards and the left side downwards. The gearbox also has a city-mode that self-shifts in a manner similar to a traditional automatic gearbox.
Selespeed was first introduced in 1999 in the Alfa Romeo 156. At that time it was the first car in its class with such a robotized gearbox. This first version had buttons on the steering wheel for changing gear. With the facelift of the 156 in 2002, these buttons were replaced by paddle-shifters due to a new steering wheel design.
During normal driving, it is possible to use either the paddles or the joystick but if the driver tries to use paddles during joystick mode the joystick has higher priority. The speed of the gear change depends on the engine revs. If the engine has more than 5000 rpm and the throttle is pressed more than 60%, the change is faster. The system also has a rev limiter to avoid over-revving. Downshift is accompanied by automatic rev-matching. This gearbox is made for sportive driving but the city-mode allows using it as an automatic transmission in city driving.

Models

The following Fiat and Alfa Romeos were or are available with Selespeed:
ModelVersion
1562.0 TS
156 GTA3.2 GTA
1562.0 JTS
1472.0 TS
147 GTA3.2 GTA
GT2.0 JTS
1592.2 JTS
Brera2.2 JTS
Spider2.2 JTS
Fiat Punto1.2 16V
Fiat Stilo Abarth2.4 20V

Other cars using similar gearboxes are the Ferrari 355 F1 and Aston Martin Vanquish. The base system is similar in all cars but the speed of operation is usually faster in higher priced cars. BMW's first generation SMG was also partly a Magneti Marelli system. Also Fiat, Lamborghini, Maserati, Mercedes-Benz and Renault used the Selespeed system.