Steve said:That's a sweeping statement Andy. I know many 147 and 156 owners that have had little or no trouble and are very happy with their cars. Early 156's had their problems, but Alfa ironed them out, the 147 is generally reliable.
As for the original question, no, you shouldn't sell the 156 and buy a Tipo. Even the newest Tipo is now an old car. Most will be rusting, most will be unreliable compared to a modern car, it will be slower, less comfortable, noisier, less able to complete a long drive, etc, etc, etc. I'm not being anti-Tipo, I'm simply stating fact. I have owned a few pre-1990 Fiats, but not without the back up of a modern car. Older cars are nice as a hobby, but if you and your family depend on it on a daily basis then you will be let down at some point.
Rusting? Rusting? Nope. We're Zinc armoured
I've used a Sedici through winter as my daily drive. Cost a hell of a lot in fuel but was as reliable as you like. Didn't miss a single day. More than can be said for many newer cars.