The Bluemotion with the quite slow 84kW engine is 6,4l/100km (36mpg).
Highline with 132kW is 7,3 (32mpg), with 4Mo 7,9 (29mpg)
with 7-speed DSG it is 7,6 (31mpg), with 4Mo 8,3 (28mpg) (and a base price of 62.159,65 €, neat).
40mpg is quite hard to get, I guess, but can be possible, but never as...