[aasasd]

Both Carmacks had themselves each a Ferrari before they put out Doom. “Commander Keen” bought those Ferraris.

Though I'm sure it was always a game of chance like everywhere in business.

[darkr]

You mean both Johns? (Carmack & Romero)

[aasasd]

Well, I had Adrian Carmack and John Carmack in mind, but frankly I don't really recall who it was, just that there were two of them.

Wikipedia mentions that “by mid-1994 John Carmack had purchased two Ferrari Testarossas,” so it's possible he was both of the guys. But I'm sure others did well too.

[tincholio]

He probably meant John and Adrian... both Carmacks and founders if ID

[trevyn]

And intriguingly, those two Carmacks are not related!