Even though I don't own a GCSRT8 (YET), I have been thinking about vanity plates for a while (I always have them on my vehicles). I tend to stray away from the obvious, (i.e. SRT this or HEMI that, no offense to those that like it, its personal preference)
I thought about: 8Ball because "speed" can be addictive
but I think I'm going with something latin;
ACEDIA: "In the Christian moral tradition, sloth (Latin: acedia, accidia, pigritia) is one of the seven capital sins, often called the seven deadly sins; these sins are called the capital sins because they destroy the charity in a man's heart and thus may lead to eternal death.
Sloth is defined as spiritual or emotional apathy, neglecting what God has spoken, and being physically and emotionally inactive. Acedia is a Latin word, from Greek, meaning "Carelessness".
-because these things are anything but "sloth-like"
INVIDIA: "Like greed, Envy (Latin, invidia) may be characterized by an insatiable desire; they differ, however, for two main reasons:
First, greed is largely associated with material goods, whereas envy may apply more generally.
Second, those who commit the sin of envy resent that another person has something they perceive themselves as lacking, and wish the other person to be deprived of it.
-because "haters gonna hate"
Just my two cents...