Aero has been around since Junior Johnson figured out the "Slingshot" move. Aero will always be a part of Nascar. Heck, I'd be happy if they could get rid of stuck cars with four flats.
I'm glad he is taking the time to get healed up properly, a head injury is not something to take lightly. To many times we've seen drivers come back way too soon.
Denny talked about the tire test earlier this year at Iowa with Briscoe in his car, said Goodyear brought two tires to the test. The one they used last Sunday and a softer one that fell off 2 to 2.5 seconds after 20 or so laps. They opted to use the harder one for last Sunday.