sounds like they should put a small motor in the throttle pedal to keep in
in sync with the throttle body, kind of like those force feedback joysticks
the hard core gamers use.

My cousin has worked as a mechanic for years.  He told me that Mitsubishi
has a "sports car" where the steering is drive by wire.  He said they fail
often and fail hard right when they do fail.  Sounds kind of scary.  Maybe
because I work with servers all day long so all the buzzwords are in my
head like redundant power supplies, redundant fans, RAID controllers, etc I
wouldn't feel comfortable with steer by wire unless there was a redundant
system in there with two pots on the steering wheel with two sets of wires
going to the redundant engine computers through two separate holes in the
firewall and then two separate wires from the engine computers to two
motors on the steering box.    

A potenciometer isn't considered electronic but electric, just so you know.

~TLGM

Oh...I think there are plenty of things that I
still need to add to my collection.  It's not
difficult to describe things using words, but
it certainly is easier when you have pictures.

I take my camera to work and keep it handy
in case something cool or odd happens to
come in the shop.

Ian