An S197 Mustang’s anti-roll bar broke and he spun out and hit the guardrail in the left lane. ... Cook is deeply embedded in the no-prep drag racing scene.

This is the Bar Nunn Cash Days, a street-­racing event held on a public roadway in Bar Nunn, a tiny suburb of Casper, Wyoming. It’s a legal ­version of No Prep, a raw form of drag racing force ...

Many drag racing crew chiefs make car-setup decisions based on how grippy the track feels under the soles of their sneakers. Toyota Racing Development (TRD) doesn’t play that way.

For example, Twin River Raceway in Virginia is maybe the furthest thing from an NHRA-certified facility, but it’s one of the gnarliest no-prep drag racing destinations out there and it’s still ...