Not knocking Will performance but there was never any part where he was acting so good you thought it was Ali.
Will Smith plays the same character usually. Even his Fresh Prince character wasn't what I would call the real Will Smith. He did that overacting with blaccent thing as a rapper and during the sitcom. And basically all his early movies was that same thing.
Imagine a young Denzel saying those lines. Sam Jackson. Even Ice Cube or LL
Would have been classic. A Black man from the streets going off about riding on a mf. But Will was just stiff and corny with it.