The only thing I can think of is there was a little bidding war between 2 people that REALLY wanted it. And they let their fat wallets and fatter egos do the talking.
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TOP 10 MOPARS: BIG POWER AT THE BARRETT-JACKSON HOUSTON AUCTION!
#1 – LOT #681 – 1971 PLYMOUTH DUSTER HEMI CUSTOM COUPE – $123,200 – NEW RECORD SALE AT AUCTION
#2 – LOT #662.1 – 1971 PLYMOUTH BARRACUDA CUSTOM CONVERTIBLE – $115,500
#3 (TIE) – LOT...
Would ya look at that! Who would have thought an A-Body would EVER be #1