A fully restored 1955 Mercedes-Benz 300SL made $880,000 at RM’s Auctions America sale from 22-24 March.
Finished in DB320 Blue, the Benz included options such as a red leather interior, custom luggage, radio and centre-lock knock-off wheels.
Second place went to a 1963 AC Cobra that made $533,500.
Said to be in fantastic running and driving order, the Cobra had been upgraded to a 289cu in V8 and featured American Racing magnesium wheels, a chromed roll bar and a side-exit exhaust.
Next in the results was a Ferrari 250GTO replica based on a ’63 250GTE that was converted in the late ’80s and made $203,500, although a 1974 Dino 246GTS failed to sell with a high bid of $295,000.
Muscle cars were the order of the day, however, and a Shelby GT500 led the pack.
Selling for $151,250, the 355hp Mustang featured a four-speed manual transmission, Kelsey-Hayes Mag Star wheels and a wood-rim steering wheel.
It was followed by a 1967 GT350 ($110,000) and a rare fuel-injected 1963 Corvette Sting Ray ($121,000), though a 1970 Mustang Boss 429 (above) failed to sell, topping out at $142,500.
Despite the weekend being dominated by American metal, other European highlights came in the form of a rebuilt 1960 Fiat Jolly 600 Convertible (€77,000), a 1958 BMW Isetta ($33,550) and a Ferrari 330GT 2+2 (£126,500).
You can view the full auction results on the Auctions America website.