Can’t comment on the petrol engines but I have the 1.6 tdi eco centric (I think it’s around 115bhp). It’s a fantastic car. I thought it’d be too underpowered due to it’s size, but it copes well with town, country & motorway. Overtaking is fine. I return an average of 53mpg.
My colleague has the 2.0 tdi, which I also drive regularly. There’s very little difference around town, but the larger engine becomes more apparent on the motorway. He returns 39mpg.
I get to order another car soon and I can choose from most mainstream manufacturers. I’ll be having another mondeo, probably an estate this time. The heated windscreen is excellent 🙂