All told, 1973 was a very good Trans Am year. You had the best production engine, the best styled, and the best sales to date. Perhaps it was because Trans Am was now the only game in town. Cuda's and Challenger's were cut down to mere a 240 horsepower 360 V8 as their weapon. Mustang, got big, heavy, and sluggish, with the 4-barrel 248-hp 351 engine as the top offering. As for T/A's little sister, the Z28, the 245hp detuned Corvette 350 V8 was as good as it got, and also the 275 hp LS-4 Corvette .
The 1973 T/A proved that when the engineers run the asylum, excellence and creativity can prevail. But in the early seventies, performance was a bad word, and tough time were ahead for the mighty bird.