'Daddy Dave' Comstock, star of Discovery Channel's 'Street Outlaws', was seriously injured in a wreck at Amarillo Dragway Saturday night. Inquisitor.com reports that shortly after Dave left the start line in the No Prep race late Saturday.  In the video below, Dave's Chevy II can be seen hitting a barrier on the left and barrel rolling several times.  He suffered a concussion and bruised lung but is said to be recovering.  The video is NSFW due to some foul language.