Die Hard megastar Bruce Willis’ collection of American muscle cars is being auctioned off by Bonhams and Butterfields on October 25th at its annual Classic California Sale held at the Petersen Automotive Museum in downtown L.A.’s Miracle Mile District. The cars in the collection reflect Willis’ personality himself in terms that they focus on strength, performance, individuality and quality.

1957 Chevrolet Corvette Convertible

A gift from his then wife Demi Moore, it received a thorough restoration and retains its original 283cu-in engine delivering 220hp, has Powerglide transmission, front disc brakes, power booster, power steering, and comes with both soft and hard tops. (Est. $70,000/$90,000)

1967 Chevrolet Corvette Roadster

Considered the most desirable year/model Corvette in history, this 42-cu.-in. big block offers 435hp and takes off like it’s turbocharged when the second set of Holley 2-barrel carbs comes on line. Like all of Willis’ cars, it has extras like power brakes, power steering, Cragar S/S alloy wheels and an Alpine five-CD changer in the glove box with an infrared remote, so it doesn’t detract from the otherwise stock appearance or require removal of the original AM-FM radio. (Est. $110,000/$150,000)

1968 Pontiac Firebird 400 Convertible

This gorgeous, essentially stock car with 400cu-in V8 engine and 330hp is fully equipped with factory A/C, front disc brakes with power assist, power steering, 4-speed manual transmission (recently rebuilt), dual exhausts, Power Flex fan, twin hood scoops, and its original radio which has been augmented by an Alpine stereo system whose custom speakers are tucked into the back of the car. (Est. $30,000/$50,000)

1968 Shelby Mustang GT 500 Convertible

The perfect, updated convertible version of the iconic car that launched Steve McQueen through the streets of San Francisco in the classic movie Bullitt. Willis had leading professionals exhaustively rework the engine to 468cu-in delivering 570hp! A full mechanical restoration included: drivetrain, suspension, body and cosmetics to the highest degree. What’s most interesting about this sexy powerhouse vehicle is that there are only two visual hints that this car isn’t stock: the polished Cragar S/S alloy wheels and, when seen in motion, a controlled suspension that informs onlookers that this is a serious driver’s car. (Est. $150,000/$175,000)

1969 Dodge Charger

Having a Bullitt-style Mustang that McQueen’s character drove meant that Willis needed a Bullitt Charger that the bad guys drove. This two-door hardtop has a 440- engine bored and stroked to 502 cu-in offering 700hp, along with all the extras like Aries pistons, Edelbrock heads and intake manifold, Holley carbs, Flowmaster exhaust, Mopar 4-wheel disc brakes, Hydroboost assist, power steering, Perfect Fit A/C, Alpine stereo, and much, much more. (Est. $50,000/$70,000)