ok what about a merc a class? I had one in diesel and it does the job admirally.
Quite spacious inside but a doddle to park, 5 door fabby generally.
Go for the Aygo otherwise. They will bend over back wards to help you. My dh used to work for them and they will literally help you in any way they can if they sold you the car.
I would steer clear from fiat. build quality and reputation proceeds them