The Maryland Terrapin was 56.
One of the good guys of television, with his hard work, and even was given an NFL assignment in 2006 (Carolina vs. Minnesota), he was truly a hard worker.
I can remember reading the commentary between him and Jeff Hammond in 2002. Byrnes' wife Karen was having issues with her pregnancy for what would become their only child, Bryson, when Steve was asking if he should work the Sonoma race on pit lane. In conversation, it only took Jeff Hammond, then the studio analyst, to inform Steve no problem, as he would gladly jump into Steve's role on pit lane of a depleted team. That said so much about how much respect he had in the paddock. And on social media, you could see that he kept in touch with former racers, their children, and for those killed in action, their widows.
He was one classy gentleman.
Réquiem ætérnam dona eis Dómine; et lux perpétua lúceat eis. Requiéscant in pace. Amen.
Eternal rest grant unto them, O Lord; and let perpetual light shine upon them. May they rest in peace. Amen.