Truex Jr. agrees to extension:

Martin Truex Jr. has agreed to an extension to stay in the #56 Toyota for Michael Waltrip Racing with NAPA as his primary sponsor. MWR has scheduled a press conference for Friday at Atlanta Motor Speedway where Truex and NASCAR president Mike Helton will be present to announce 2013 plans and unveil a car.(ESPN.com)(8-28-2012)