Are you talking about the 1.4 petrol engine?
If so, lemme tell you something: steer clear of it!!
My mother has a 1.4 75hp 16v on her 2001 polo [I guess it's substantially the same engine as the 85hp]. It is slow, fuel consumption is **** [my 130-140 hp tdi does far better with almost double the power and mine weighs a lot more] and what is worse it drinks a lot of oil. In fact, it drinks so much oil that the MAP sensor in the throttle body got dirty with it and threw out a CEL once,,, I had to make it clean to make it work again.
The car has less than 40.000 km so I'd say it's almost new yet it's developped a
problem with the 2nd gear sinchromesh,,, now 2nd gear is a pain to throw in,,, actually I reckon this might be a
problem of my mum being not good ar driving,,,
Another thing, I hope that thru the years, vw has solved the biggest
problem I always hated with that engine: the lag on the accelerator pedal.
My car has a drive by wire system but the accelerator response is perfect, on my mother's polo you get a delay between when you press the pedal and when the rpm actually rise,,, this is so bad that at first you stall the engine a lot of times and then you learn to live with it but it's a PITA, lemme tell ya.
I'd say go for the 1.4 tdi, it's far torquier down low and much more driveable, more reliable, far more economical and it has a bit of tuning potential too [109hp with revo are kinda good]
I'm sorry to say it but vw have really gone wrong with that engine,,, and I don't want to ruin your plans but if you want my suggestion, really don't waste your money on that.