tbh honest i'm not sure with the polo
i've got a 2004 audi a4 100bhp, i used to have a 130 model pretty much the same
i notice very little differance except for the gearbox
mine is mapped but otherwise totaly standard and pulls well for such a big heavy car
the only advise i would prob give is simply go see both cars and buy whichever is the better car
and dont take into account which 1 is the which, go with whatever 1 you like the most
as the mileage wont be a big deal if its a good 1, and the 130 might hold its value a little better,
but the 100bhp model seems like the better buy just now, so its a win win no matter which 1 you pick