already have garages filled with flaming red Ferraris? good. then it's time to up your love for the prancing horse marque by acquiring this one-of-the-kind 1953 Ferrari...

1953 Ferrari Hydroplane 'Arno XI'
(photos: RM Auctions) 1953 Ferrari Hydroplane ‘Arno XI’ | US$auction | www.rmauction.com

already have garages filled with flaming red Ferraris? good. then it’s time to up your love for the prancing horse marque by acquiring this one-of-the-kind 1953 Ferrari Hydroplane ‘Arno XI’. developed by Achille Castoldi in collaboration with Enzo Ferrari, the Arno XI is powered by a Ferrari 375 twin supercharged G.P. 52/1 “Nautico” engine, a maritime version of the 375 that puts out a phenomenal 600 plus horsepower and achieved an astounding world speed record of 241.708 km/h – a record that still holds today. beautifully restored back in 1993, this legendary water-borne Ferrari can be yours when it goes under the hammer at the Monaco sales event organized by RM Auctions. the Monaco sales will be held at the Grimaldi Forum in Monaco from May 10 through to May 12, 2012. power past the jump for a few more higher-res images.