Re: Selespeed – how quick/slow is the shift?
In actual fact the Alfa, Fiat, Ferrari, BMW, Maserati and Aston systems are all based on the same Magneti Marelli technology and license and other than the BMW are virtually the same unit.
BMW's is built under licence by VDO Siemens.
The transmissions themselves obviously differ quite a bit, but the actuators are virtually the same and all developments of the original Magneti Marelli F1 design for Ferrari.
As more suppliers go down the twin shaft DSG route though, Selespeed investment is on the wane so dont expect to see too much in the way of new developments.