Which B7?

[dweb]

I currently have a 2007 1.9 tdi with 145k and it`s time for a change.
I`m looking at 3 possibles-
2011 2.0 SE tdi DSG Auto/tiptronic with Bluemotion ,76k miles-£9450 from a non VW dealer
2011 2.0 SE tdi Bluemotion,78k miles £9450 from a VW dealer.Just seen this 1 online and I`m wondering if they made a mistake with their price.
2011 1.6 Bluemotion Tech,84k £7750 from the non VW dealer I bought my current car off in Feb 2011.

I drove a 1.6 tdi other day and thought it was very sluggish taking off from cold.
I`ll be pulling a caravan,so need a bit of torque.I remapped my 1.9 and it made a big difference when towing.
I still haven`t ruled out buying a 2010 2.0 tdi if the miles and price are right.

All opinions welcome.