Hi T5TDI
Bearing in mind the stuff that I tow with my van, the 174 engine does seem to be a bit of an extravigance, but my rational for it was that com the Summer, I shall spend more time in it than my livingroom. It is my workshop and office, and although a lot of the time it would be within a 50 mile radius of my home, it is not unusual for me to have to drive down to the South of France or Spain.
I have driven both the T4 2.5L 102 and the T5 1.9L 104 and to be honest there wasn't much in it, though naturally the 1.9 did seem to lack a little low down grunt, but both of them did seem like flying machines compared to my little 1.9TD