Mercedes W04 chassis #4 was campaigned by Hamilton - who joined the Three-Pointed Star for the 2013 season as team-mate to Nico Rosberg to end his six-year spell at McLaren - in 14 of the 19 rounds.
Most notably, Hamilton - who would win six of his seven titles with Mercedes - converted pole position to win the Hungarian GP ahead of Lotus driver Kimi Raikkonen and Red Bull’s Sebastian Vettel.
Of the further four podiums he bagged to finish fourth in the drivers’ championship, three were scored (third place in Malaysia, China and Belgium) aboard this car.
Chassis #4 became the first Hamilton-driven Mercedes F1 car to be offered for public sale, with renowned auction house RM Sotheby’s bringing the gavel down in Las Vegas on Saturday for £15.1m.
The car carried a pre-sale estimate of £8m to £12m ($10-15m).
The auction was held at the Wynn’s Awakening Theater and was hosted by TV presenter and writer James Corden.
At 39 lots, it was a relatively small sale. A Ferrari race suit believed to have been worn by Michael Schumacher for his 2003 Italian GP victory fetched £102,000.
A 1990 Ferrari F40 GT, originally owned by the designer of the Mugello circuit and campaigned in the Italian GT series, failed to hit its reserve so did not sell on the night.
A replica Lando Norris was flogged for £8700 to raise money for St. Jude Children's Hospital.
Source: Autosport