I cruised my little Honda Civic hatchback wagon across the top of the boot from the west coastal city of Livorno to the northwest city of Vicenza. That little scooter would hold at 110 mph with the pedal to the floor (illegal).

I recall one trip back to Livorno, driving the autostrade in the left lane at 110 with nobody on the road. As a note, don't ever do this. That lane has a purpose. I looked ahead of me. Nothing. I looked in my mirror. Nothing. I looked ahead of me. Nothing. I looked in the mirror. Lamborghini with flashing headlights. I moved over and he zoomed by at about 200 mph.

From Wiki:
The first speed limit, to 120 km/h (75 mph), was enacted in November 1973 as a result of the 1973 oil crisis. In October 1977, a graduated system was introduced: cars of above 1,300 cc (79 cu in) had a 140 km/h (87 mph) speed limit, cars of 900-1299 cc had a limit of 130 km/h (81 mph), those of 600-899 cc could drive at 110 km/h (68 mph), and those of 599 cc (36.6 cu in) or less had a maximum speed of 90 km/h (56 mph). In July 1988 a blanket speed limit of 110 km/h (68 mph) was imposed on all cars above 600 cc (the lower limit was kept for smaller cars) by the short lived PSDI government. In September 1989 this was increased to 130 km/h (81 mph) for cars above 1,100 cc (67 cu in) and 110 km/h (68 mph) for smaller ones.