I picked up the toy yesterday afternoon after its 1500km service. It now has
a towbar but not a towball - some sort of stuff-up means that I have to
go back to get it later after I pester the fleet management people about
it. You'd think that for the price of a $20 bit of steel they'd just
throw it in...

Anyway, they fixed the sunroof cover so that it doesn't slide shut under
brakes any more, and they fixed my gripe with the handbrake (too slack).
They obviously can't do anything about the traction control but I did
ask them to pass on the message that it was awful

It now runs beautifully, without the couple of small nuisances that were bugging me before. The only thing wrong is that the TC is programmed to turn itself back on whenever the engine is started.