35 mpg would cover just about all the engines with the exception of the 3.2, I await to be corrected
Theres are timing chain streching issues with some of the petrol 2.2 engines. Sortening the oil changes is recomended services is recomended to help this.
The 1.9 and 2.4 jtdm have the EGR and DPF fitted, same as most manufactures. Remapping with EGR & DPF delete sorts out any of the issues some suffer, with increase in power and MPG. Deisels are no best suited as shopping carts.
The 2.0 jtdm I dont know much about as I've not seen much on here, must be a goog thing.
The 1750 TB I dont know much about as I've not seen much on here either, must be a goog thing.
There is also the Qtronic ( auto ) and the Q4 ( 4x4 ) versions to consider.
All in I love my 159, but then I would say that. You need to service them correctly when they should be done.
Things to look for while test driving would be:-
Knocking from the front suspension, usally upper whish bone, some times it has been the bottom ball joint.
Front tyre wear on the inside edges, factory setting wear the inner edges. Re tracking to parralle sorts this.
Service history is very important, cam belts, tensioners, water pump, etc.
Is the usall stuff really. The " Alfa break down all the time " really is not true anymore. At the end of the day if you have un an Audi 4 the Alfa is not going to any more expensive to service or run, mpg may be lower.
Best bet is to go out and drive as much of the range back to back as you can. Don't know where you are in staffordshire, but have a look in your local Alfa Romeo garge, Platts example have a few on the forecourt.
" full works
60mm Core Full size RS500 FMIC
AEM W/M Injection
Koni struts / Novitec springs
Grooved & Dimpled discs and pads
19" Prodrive wheels, Michelin Pilot Super Sport
Halo's HID's & LED's
Hub dyno'd at well over 500lbft
at the wheels !
and that's limited.
Thats over 750 Nm for you figure fiddlers