Find my sister a car.

[Kezzieboy]

Your 306?

Is going to be my girlfriends car

Yeah, your 306 fits the bill

Or a few people on here seem to like the mk4 golf

As above, and Golfs command a daft premium, so to get a comparable golf it'll be a few years older and have vastly higher price tag than an equivalent peugeot/ford/citroen/renault

Ibiza TDI over any of that you've listed. It's virtually a Polo with a decent price tag.

Fiesta if any of the above.

Ibiza might be worth considering, I feel it may still be a bit too expensive, plus it's probably not as good on juice as the smaller diesels

You say she will be doing the ocassional long journey, but how many miles on average does she do per year?

Financially a diesel doesnt' make much sense unless you're doing at least 10,000 miles.

However...

The area you are in also features a landscape which isn't very...flat. So you may want the extra shove from a turbo diesel.

Hmmm...

How'd you work that out?! Maybe for a new car, but second hand I don't see how that makes any sense? And she's coped alright with the Micra, so power isn't an issue, I just don't see how a diesel that does 60+MPG and has £30 a year tax can not be cheaper than a petrol in every way?