"retired from full-time competition." He will still be at the Chili Bowl (his own words) and I wouldn't be at all surprised to see him pop up elsewhere now and then either.
part of it is this: Part of the reason for the timing now is I’ve spent the last two weekends with my son, Kevin, racing. I haven’t had any time to spend with his racing the last four years. He will drive a (NASCAR) Nationwide car for the rest of the year and I want to be there to support him.
His son is Kevin is running in Nationwide for a one car team that bought Penske's last year Dodges and their leasing Penske engines.