Rare modification footage of Arno XI, curated from across the internet. We're actively searching for footage — check back soon.
Modification content documents the culture of making cars faster, louder, more beautiful, or more capable than the factory intended. From bolt-on upgrades and ECU tunes to full engine swaps and widebody conversions, these clips capture the creativity and technical skill of the aftermarket community. The best modification content shows not just the finished result but the process — the problem-solving, the fabrication, and the inevitable setbacks that come with pushing beyond factory specifications.
Arno XI is a hydroplane conceived by Achille Castoldi. Designed to break water speed records, it was built between 1952 and 1953 by the Cantiere Timossi boatyard, located in Azzano (a frazione of Mezzegra) on the shores of Lake Como. Castoldi persuaded Ferrari, via its racing drivers Alberto Ascari and Luigi Villoresi, to supply him with the same power unit used in the Ferrari 375 F1. The engine w...
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