> The truck cannot go faster. Floor the throttle at 56mph and nothing happens. The fuel injection is electronically capped.

Man, that's kindof scary -- if for some reason the truck legitimately needs to go faster (eg, escape a warzone, a flood, a wildfire), it cannot do so. I'm sure this was a calculated design decision, but on the surface I'd prefer if the speed was logged and then checked at regular intervals (perhaps with automated reader). That would also allow for easy updates to the limit, tighter restrictions in specific areas, etc. I wonder what all the factors going into this design decision were.