Shame. I quite liked this thing!!! Although with regards to the £900, im not sure you can blame the car for that ...
Ok, that is annoying, but these things often happen with buying someone elses car, as they are quite often selling it due to issues, so in effect you needed the garage to do the following: "Clean the throttle body and map sensor and reset all the pins" ...
What you didnt need doing, but had done anyway, which is most likely what has left a bad taste in your mouth is the following:
Drop links
Alignment
New leds in the lights
New transponder thing for the leds
Some torque bush thing for the propshaft
A new key
s**t loads of labour
None of that sh1t needed doing to fix a misfire, but is exactly what happens when a car gets left at a garage for them to "have a look over"
I look forwards to the next Volvo 340 thread.