The gearbox transmission selespeed is a manual electro-hydraulic transmission used in Alfa Romeo vehicles and was first introduced in 1999. Whilst the transmission is manual, it also features an electronic clutch.

The gearbox transmission selespeed has an unusual setup that is operated by using either paddles on the steering wheel to control the gears or using a joystick to select them. This choice is down to personal preference for the driver who can choose to use one or both during the drive. The joystick is given priority over the paddles by the vehicle. With the paddle system, there is a left paddle that shifts gears down and a right paddle which shifts gears upwards. The inner workings of the gearbox transmission selespeed operates in a similar way to a normal gearbox.

The gearbox transmission selespeed can be prone to failure, which are most commonly associated with the selenoids or the sensors. Signs of failure can include a difficulty in changing gears to the required gear, an inability to move out of neutral or total gearbox failure. Other issues could be caused by a selespeed pump failure, which can blow the selespeed fuse.