Just been back to my parents for a short holiday, I took a look on their 126. Besides the wash/vac it only needed a few deciliters of oil, some tightening on the V-belt, and adjusting a few degrees forward on the ignition advance. Nearly a year passed since I last had to fettle something, and the car is a daily driver.
How can people say Fiats are not reliable?
(Knock on wood, of course.

)