What the mpg figures for the 123?
I'm only averaging 25 mpg from my 120 diesel (up to 30 on a long motorway run). So I assume the petrol V6 would be a fair bit worse ...
Ready for this ... found some official figures for the 123:
City - 15.7
Extra-urban - 28.2
Combined - 21.8
The official 'Combined' figure for my 120 is 30.7, so I would reckon on the 123 averaging about 18 mpg in the real world.