Not long after I bought the car I reported to the dealer that the car shuddered at times when it entered 5th gear. The problem never went away, and the dealer's computer said 'no' and there was nothing they could do. Then, one of the rear seat belts 'malfunctioned'...mechanical failure. Very confidence giving. Despite constant complaints to the dealer about the gearbox, they were adamant that nothing was wrong. Finally after 17 months of unenjoyable driving, the gearbox made the car dangerous to drive. Heaven help anyone with the same problem as the car is now entering its 5th week off the road as Fiat can't get the replacement part and don't know when it will be available. Don't be fooled by the Fiat's MPG figures either, not that you can ever expect to get near a return quoted from lab conditions, but compared to MINI, they are some distance apart . It's a shame that such a versatile little car is let down by other niggly little faults, has seat belts that I have no confidence in and the very fact that Fiat are unable to supply a part which is keeping my car off the road. As my Qubo is a Motability car, thank goodness I have their support and help. When I asked my dealer if I could have a courtesy car when the Qubo became too dangerous to drive, I was told that they required 3 weeks advance notice for a courtesy car.
Apart from the constant gearbox problem, a seatbelt that suffered mechanical failure, another trip to the dealer because of a warning that there was water in the fuel filter (about 2 weeks after a service), reliability has been good.
Performance....it's 1.3 so it's not going to win a drag race...it is what it is. Desperately let down though by a gearbox that makes the car shudder, or even worse, makes the driving 'experience' most unenjoyable.
As per my previous comments....mpg very disappointing. However, if you want a car that does late 40's to the gallon, then you'll be happy :-)