From their Site:
August 7, 2009 - SCION drag-n-brag plus Show-n-Shine
Your Friday nights just got hotter at Texas Motor Speedway! SCION drag-n-brag is heads up, street style drag racing. Racing is held on the one-eighth-mile pit road and the events are open to any automobile and any driver, provided they possess a valid driver's license. Weekly trophies will be awarded to the fast vehicle in the four individual classes.
In addition to the on-track action, a Show N' Shine car show will take place each Friday night as well. All vehicles are welcome to enter and awards will be given for Best of Show, Best Classic (1972 or prior year) and Best Current Custom (1973 to current).
Gates open nightly at 6:00 p.m. Drag Racing or Show-N-Shine entry fee is $20. Participate in both for only $30. Spectator entry is $7. Parking is free for the grandstands near Gate 3 or $15 for the infield. Coolers are not allowed in the grandstands.