Im going to recommend the Mk4 Ibiza PD130 --- I moved house and ended up meaning my 80 miles commute went to 180 miles a day, so my old "daily", an FTO, had to go. I hate diesels and I hate hatchbacks but I was recommended the 1.9 Diesel Ibiza FR, and really to stay in a good job I had to suck it up lol.
However almost 4 years on, Its been so bloody reliable I cant recommend them enough! I get 70-75mph on the motorway, pre remap, 65-70. In summer in the 50 sections she has been seen to go to 85+!
Service her myself, about £40 in parts (oil filter, oil, fuel filter) and clean the performance panel filter, so its cheap to maintain.
Problems? So far, only wear and tear! A couple of wishbones, bushes, lowered her after a spring cracked.
Modifications (if like me you cant hack standard!) H&R springs dropped her 40mm, the 17" alloys are quite rare too so kept them, exhausts and downpipes, decats etc available from likes of PSI, all affordable. Remaps are common place, saw my girl go from 130hp to 170, and 260lbft to 300 lbft torque. Theres loads more you can do too, LCR upgrades, bigger turbos, FMIC, brakes etc etc but I dont want to spend too much on a daily.
Tax is £130 a year, insurance pretty cheap (unless you are new to driving, for some reason when I tried to keep the FTO and start with a new NCB on the car the cheapest quote was £3k lol!)
Oh and also cambelt is every 60k, its an annual job for me, but one I take her to the dealer for, its about £300 - but when you do so many miles you need the warranty, if the engine goes bang its Seats fault then not mine haha!
I had considered a 330 BMW or even an Audi TTd BUT the Ibiza is so cheap to maintain... Basically what I am saying is, because the car has been so damn good and affordable, I've treated myself to an S15 Spec R Aero for the weekends *touch wood she doesnt go to sh!t now haha*
I know its not the Jap car you would really want but hopefully the advice has been useful