No, he didn't walk away, the crash was fatal. I find it amazing they put a wall around the inside of the curve. And then they curved it around towards the infield. There would have been plenty of room for him to spin through the infield. Hopefully they change that configuration in the future. Ex-Nascar driver Chad Little (for those who remember him) is the director of Nascar Mexico, kinda surprised he allowed that track configuration with his experience.
David.