Stewart, Newman to Backup Cars

Teammates Tony Stewart and Ryan Newman will have to start at the rear of the Daytona 500 field after crashing in the same incident in final practice today. The accident occurred in turn two after Newman's right rear tire blew just in front of Stewart, who collected Newman's car after it had spun sideways.

Stewart showed his frustration in an interview for SPEED TV: "Same stuff that we always talk about every year, failures Goodyear has. I think that's part of their marketing campaign — the more we talk about it, the more press they get."

Some teams experienced tire blisters during the Gatorade Duel at Daytona qualifying races on Thursday.

After qualifying fifth, Stewart has more to lose than his teammate Newman for pulling out a backup car. Newman was expected to start 36th after crashing out of Duel 2. Both cars will have to start in the final row on Sunday.

Reed Sorenson topped the practice's speed charts at 191.575 mph.