10 Most expensive Muscle Car,based on 2012 auction prices

1969 Chevrolet Camaro ZL1

Based on 2012 auction prices, Total Car Score ranked the top 10 classic American muscle cars. Leading the pack: the 1969 Chevrolet Camaro ZL1. The rarest Camaro ever produced, the ZL1 came with a 427-cubic-inch aluminum block V8 engine. This top muscle car commands top dollar with a current market value of $425,000.

1971 Plymouth Hemi ‘Cuda

Also commanding a $425,000 price tag, the 1971 Plymouth Hemi 'Cuda comes in second on the list. This muscle car features a shaker scoop, drawing attention to the car's 425 horsepower hemi engine.

1969 Dodge Charger Daytona Hemi

Back when NASCAR directly influenced car sales, Dodge beefed up its Charger with a Hemi engine and a more aerodynamic body. Today, the Charger Daytona is worth $400,000.

1969 Ford Boss 429 Mustang

Like Dodge, Ford was also focused on NASCAR glory. Its Boss 429 engine was so big, the traditional Mustang body had to be modified to accomodate the extra power. Today, this car has a value of $220,000.

1968 Ford Mustang GT500KR

A serious hot rod, this Shelby Mustang GT500 KR (standing for "King of the Road") originally sold for $4,472. In an attempt to keep insurance costs low, Shelby quoted the vehicle's engine at 335 horsepower, a figure later determined to be an underestimate. In 2000, a modified model of this classic was featured in the Nicolas Cage film "Gone in Sixty Seconds." Today, the King of the Road goes for $130,000.

1970 Pontiac GTO Judge Ram Air IV

The muscle car era began with the 1964 Pontiac GTO, making it fitting that a model of this muscle classic makes it into the top 10. At number 6, the 1970 GTO Judge Ram Air IV features a V8 engine with high-flow heads to give it an extra kick of power. Today, the car goes for $80,000 on the market
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1970 Chevrolet Chevelle SS 454 LS6

With an official 450 horsepower rating, the Chevelle SS 454 LS6 is likely more capable of reaching the 470 to 500 horsepower range. Number seven on the top muscl car list, this Chevelle is worth $75,000 today
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1970 Buick GSX Stage 1

Known more for their luxury cars today, Buick used to be a powerhouse in the days when muscle cars ruled the road. The GSX housed a 455 Stage 1 engine with 370 horsepower. Today, the a GSX Stage 1 goes for $75,000
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1973 Pontiac Firebird Trans Am SD455

Despite the muscle car era coming to a close in 1971, the engineers at Pontiac were unwilling to give it up, making this Firebird one of the last true muscle cars produced. Today, these have a market value of $75,000
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1970 Oldsmobile 442 W-30

With a current value of $35,000, the 1970 Oldsmobile 442 W-30 is the most affordable muscle car on the list. Its lower value doesn't mean less power—the W-30 model still manages to pack 370 horsepower and 500 pound-feet of torque.