Today’s car of the day is this 2009 Roush Mustang P-51B that was at the 2018 Barrett-Jackson Auction in Palm Beach. It’s based on the first phase of the fifth generation, which was made between September of 2004 and December of 2008 (model years between 2005 and 2009). Only 51 of the Roush P-51B were made. The engine is a 4.6 liter supercharged Modular V8 that produces 510 horsepower and 510 pound-feet of torque. The transmission is a 5-speed manual. This Mustang was auctioned off for $47,300.