All Fulvia models got some variation of the V4 engine, but there were many different body types. Berlina, Coupe, Rallye, and Sport were among the main body types, with each of them having several differing sub-types.
The front suspension on this car was was independent using a wishbone setup, and a solid axle with leaf springs were used in the rear. All wheels got Dunlop disc brakes, which were not particularly great but still stopped better than the muscle car monsters on the road at the time.
These cars were never made to have a high top speed or even impressive acceleration. They were made to speed around corners at speed and take on uneven road services. They did this well for a car of that time, and collectors still create a demand for these cars today.
You can find these on the collector car market, or sometimes listed on eBay. Parts are also listed on there if you don't like going to swap meets.