Mine is 2012. Yes, it's that weird thing which cuts the engine if you stop at lights. You can switch it off but end of the day it reduces the road tax as it puts the car in another band.
The TD4 engine does sound a bit agricultural when cold.
Mine with 99,000 miles on the clock does 44mpg on motorways at 60mph and 38 urban. Very comfy to drive with usual toys.
One thing which improved the economy was, several weeks ago i filled up with go faster diesel and stuck four bottles of redex...