I always recall test driving a 1.8T seat, and yes it was noticeable the hesitation before launching forward,compared to the 2 lit petrol engine in the primera i had at the time,which would pick up immediately on acceleration.
But as a tow car i would always chose the turbo engine, more torque over a very wide band, from 1950 rpm to 4500rpm max torque, for the audi i then bought.
My last tow car a 2.2 dci xtrail was again slow of the mark, but was a great tow car with plenty of torque from 1500rpm, with a max at 2000rpm of only 231 lb/ft.
However the xtrail i have now is the 2 lit engine 171 bhp/266 lb/ft at 2000rpm. While it tows well, it does appear to have less low down torque, even allowing for the slightly higher gearing, and 100kg extra kerb weight.
I am of the opinion that the extra cc of the 2.2 is preferred. That old saying "there is no substitute for cc" is still true today.
If i was to chose between the 2 lit or 2.2 lit mondeo, for me it would be the 2.2, even if the power outputs were the same, i believe the delivery of the larger engine will be more flexible.
Various power outputs have been quoted for various versions of the mondeo.
The latest model has according to my what car mag, the following outputs.
2.0 =138 bhp/250 lb/ft
2.2 =173 bhp/272 lb/ft
Economy wise the 2.0 is about 2mpg better.
I can only assume the above figures do not include the power boost?
At any rate i would have the 2.2 for reasons already stated above.