For quite some time, a guy named Doug Stevenson in Ohio owned two 1976 Gran Torinos that were both used in the second through fourth (final) seasons of the TV show. One looked exactly as it did when the show ended, but the other one had undergone some changes since then.
Doug kept a low profile, but the community of Ford Gran Torino owners learned about his TV show cars when the Fairlane Club of America published a story about them in their magazine, The Fairlaner.
Read the Fairlaner Article about Doug's Cars
In that article, Doug said Gran Torino "#2" had not fared as well as "#1." Between the time the TV series ended and the time Doug bought it, it was wrecked, sold as salvage, reclaimed with borrowed parts, and repainted the wrong color.
Steve B. bought the car from Doug in 2007, and had it restored to the condition it was in during production of the TV Show.
Car "#2" has a 460 4 bbl. engine and many more options. It has bucket seats that were substituted for the original bench seat to keep "Hutch" from sliding into "Starsky" during sharp cornering.
It has power windows, tilt steering wheel, 8 track player, air conditioning, and cruise control.
You can see a very interesting "Featurette" about the TV Show Torinos as part of the Bonus Materials included with the "Starsky & Hutch" Complete First Season DVD Collection.