Chevrolet Corvette Z06
Renton, WA

Seattle Seahawks running back Fred Jackson wrecked his sports car while drag racing with someone after a team practice ... according to witnesses. The accident went down near the team's practice facility in Renton, WA. Witnesses tell us Jackson appeared to be racing with someone in a red Dodge Charger ... down a straightaway on a public street. We're told Fred was in a black Corvette, and somehow lost control .. smashing into a large planter box and then a stop sign.