Back when it was a challenge to find NASCAR diecasts, it was pretty much ETRL or nothin'. In 1984 Hot Wheels came out with a casting of the Thunderbird in Buddy Baker's #21 Valvoline livery.
I had two of these models, one for play, and this one for display.
They re-issued this one a couple of different times, as Thunderburner and Velocitor (and even issued a Stroker Ace version in 2013).
This one might be one of my favorites, purely for sentimental reasons.