Roush continues its line of aviation-themed modified Mustangs with the 2009 P-51B, a 510-horse Mustang that's on sale now.

Following the success of last year's tribute to the famous WWII fighter plane, Roush has put together another limited-edition P-51 series Mustang. The 2009 P-51B was unveiled at SEMA, and is the second aviation-themed modified Mustang from the manufacturer, and just fifty-one will be built.

As with last year's P-51A, the P-51B's 4.6 liter V8 has been rebuilt to produce 510 horsepower and 510 ft-lb torque. The power boost comes courtesy of forged steel internals and lower compression. The P-51B is set apart from last year's special edition by the addition of black chrome wheels wrapped in Cooper RS3 rubber that expose six-piston brake calipers. A Roush Stage 3 suspension kit improves handling.

Interior and exterior styling is tweaked to reflect the WWII motif, with olive drab stripes on the silver exterior. Different hues are used on the six-piece Roush body kit to reflect the patchwork look of combat-repaired fighter planes, as well. Red and yellow checkerboard accents complete the WWII flyboy look. On the inside, Roush adds a vent pod gauge set with boost gauge and P-51B logos on the shifter ball, seats and floormats. Options include an integrated Escort Passport 9500i laser/radar defense system, toolkit and a Roush exhaust. Available through Roush-approved Ford dealers, this ultra-rare Mustang comes with a three-year, 36,000-mile warranty and an MSRP of $65,800.

Gallery: Roush Announces Second P-51 Mustang Tribute Car