AWX PD130 estate - what sort of mpg to expect?

[cliveyp]

As subject really....I used my newly acquired 130 Highline estate for the first time today, heading out for a 150 mile round trip. Route is probably 80% motorway/dual carriageway, 18% welsh A roads, 2% traffic. I was three-up, no luggage, and averaged 46mpg out, 48mpg home (according to the MFA). My driving was gentle, sitting steady at around 70-75 max on the motorways, 60 on the A roads. Not much stop start.

Car has covered 145k, has been serviced every 10k. It's seen 85k miles in the last 4 years.