Chris & Grdenko,
I too would like to chime in here and share my experience with the 2.5 Turbo. Last summer my wife and three children embarked on a +5,200 mile return trip from San Antonio, Tx to Halifax, Nova Scotia. Never missed a beat; gave us an average of 33.4 U.S. mpg while driving between speeds of 70 to 75 m.p.h. One fill-up gave us over 35 mpg! What a great road car too.
Currently, we are able to obtain between 26 and 29 mpg trying to move around our recent Texas address - Houston. For anyone familiar with the area, that means plenty of stop and go traffic and delays.

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'82 300D Turbo 204K
'10 Toyota Prius 85K
'13 AMG C63 (P30) 23K
'14 Audi Q5 TDI 46K
'16 RAM 2500 CTD 12K

'10 VW Jetta TDI 65K (traded)
'12 Nissan Leaf 34K (returned end of lease)
'15 Audi A6 TDI 25K (traded)
'95 E320 166K (traded)
'93 300D 2.5 Turbo 168K (sold)