Hi all, and to the thread starter, I hope ur Dad enjoys the car.
I have been fortunate to own a few decent cars. Now money saving(trying to) I'm running a 2.0 Ghia focus which is great for very little money. However I also have a 52 st170 which is a much better car all round apart from only having 3 doors! The standard 2.0 is pretty quick, will return an average of 32mpg and is cheap-ish to insure.
As with the Mondeo ST220 it does suffer with low torque until you get higher up the rev range. (over 4k as widely stated). If this was better then both st170 and st220 would be brilliant.
I had planned to modify the 220 but decided to do the clutch /DMF instead, and no that wasn't by choice lol. I'm in two minds whether to modify the st170 at all other than a K & N panel filter. I was tempted by a decat & bluefin but have heard mixed reviews.
I managed to get my st170 for little money really. They really are a lot of car for their price!