Lol.....my aunt had one of the last of them....a Vitesse auto (twin plenum).
A mate of mine was unfortunate enough to briefly own the 2.6 straight six one.
I remember being in it and smoke coming out of the trip computer.....which apparantly rarely worked anyway and was a swine to operate.
Another mate of mine had a Maestro Vanden Plas with a similar trip computer (the annoying talking one). It would blurt out totall cr@p at random. Fill it up with fuel and it would tell you "low fuel" at the next roundabout just to wind him up.

He had a special tool (actually a windwcreen de-icer) with which he used to beat the trip computer when it misbehaved. The irony is, when it developed a habit of telling him periodically that his brakes required service he totally ignored it, and after a few weeks his brakes failed.

That and the pointless digital dash. It was anybody's guess what speed you were doing. Just had to try and ignore it. I think it read 188 MPH for a while. Wishful thinking for a 1.6 litre S series <shudder>.
Kevin