Trans Am's are always V-8's (except for a few 80's 3rd gen models offered with the spectacular Turbo V-6 Grand National engine.
The best examples are the 4th gen 93-97 LT1 and 98-02 LS1 powered Trans Ams. The WS6 Ram Air Trans Am is the most aggressively styled road rocket to ever hit the street. For a time was the official car of the NHRA. Often sited by car magazines as the best 'bang for the buck' musclecar money can buy.
On the road, they are imposing, rumbling, and a little indimidating to other commuters. A renegade-looking car. Outlawish. Disobedient. Muscular styling with the power to back it up and then some.
"Damn...that's a nice car man. What is that, a trans am?"
"I wish I had a trans am."
"There goes that punk kid in his trans am."
Me: "Oh yeah, your right, my '79 403 6.6 trans is not a muscle car, but your Toyota Camry sure is, damn I bet you get loads of head in that sexy 4-banger!"