Mercedes is said to be looking at removing the physical link between the steering wheel and the actual steering rack. BMW offers an electronically controlled variable rate rack on the new 5 Series.
As an enthusiastic driver I cannot see how such an artificial steering system can duplicate the feel of a decent rack and pinion set up. It would be like playing Virtua Racer or something! Just how would such a system cope in event of the engine stalling?
My Alfa Romeo has a drive by wire throttle, which is supposed to enhance throttle response. In theory it all works well, but the legendary stereotypical Italian electrical gremlins occasionally like to manifest themselves... :-D
Adding complex software to a car will only add more things to go wrong IMHO.
