The Impala that was used in the Tupac video “To Live and Die in LA,” and referred to as a '64, in the “cruisin' down the street in my '64” lyric has turned up, and it's a '61

Apparently, the ‘61 Impala had many technical issues and ended up getting back its original 283 cubic inch engine under the yellow hood... along with a massive roster of spectacular enhancements. Although the footage from “To Live and Die in LA” shows Tupac and his “crew” lowriding in the Impala, it turns out the car was stock – the production crew filled it up with sandbags to make it look cool...

https://www.autoevolution.com/news/tupac-s-1961-chevrolet-impala-has-resurfaced-as-a-hopping-long-beach-lowrider-151683.html#