Not sure what you define as average. The average Toyota? sure 80mph it will probably rattle the wheels off. The car in question is a Crown Vic which was bought via the police department (police service package?). It would probably have been equipped with high performance black wall tires and almoust undoubtably a V-8 (I think about 300hp). Further more, the car was probably maintained by the same mechanics that maintain the police car fleet. In my opinion, most Fords have numb steering which only gets worse with age, but in this case, I would assume it was maintianed in good condition. Bottom line, 80mph on a highway is not a big deal (depends of course on the highway and conditions). The big German car makers (Audi, Mercedes, BMW) often argue against speed limits on the Autobahn because it would water down the need for performance sedans. These cars are often limited by their computer to 155 or 165mph.
Elwood: "It's got a cop motor, a 440 cubic inch plant, it's got cop tires, cop suspensions, cop shocks." (err., OK 4.6liter motor)