Zagato-bodied Aston Martin models are highly rare, as the vast majority of them have been sold as limited edition models.

The Aston Martin V12 Zagato is no exception, having been made in a production run of just 64 cars after its debut at the 2011 Concorso d’Eleganza Villa d’Este that marked 50 years of the original DB4 GT Zagato.

However, Aston Martin built two additional pre-production V12 Zagatos. Both were made to tour the world as show cars for prospective customers, and one of them is the only one in the series to feature an all-aluminum body; all the others had a hand-crafted aluminum and carbon skin.

See Also: Aston Martin V12 Zagato “No. Zero” Is One Of One, And It’s Up For Grabs

The only aluminum-bodied Aston Martin V12 Zagato, which is also the only right-hand-drive pre-production model, is now offered for sale by Bell Sport & Classic in the UK. As you would expect, the car was owned by Aston Martin itself up until 2016. Afterwards, it was supposed to be shipped to Zagato in Italy to form part of the design house’s own collection. However, that did not happen because an Aston Martin client persuaded the company to let him purchase it.

Before taking delivery of the aluminum-bodied V12 Zagato, the mysterious customer had it fully recommissioned by Aston Martin. Modifications included a new Aston Martin Racing Green paint instead of the original Titanium Grey, a unique silver-finish grille, a re-trimmed interior in Beige Hide and likely a little more power than the standard car’s 510 HP.

The seller is not entirely sure about the tuning part, but the listing says that Aston Martin engineers are “rumored to have fettled the 5.9-liter V12 engine to give it a little more power.” Certifying the rarity of the car and its pre-production status is the original plaque under the bonnet which reads ‘No. 2 of 2’.

“All of the cars in the limited run of 64 are, of course, very special indeed but this outstanding example is one of only two pre-production cars and the only fully aluminum-bodied model ever made,” says Tim Kearns, Managing Director, Bell Sport & Classic. “It has been treated to a meticulous recommissioning by Aston Martin itself and would be a wonderful addition to any collection.”

The price is available on request, but considering that ‘regular’ V12 Zagatos were offered for £330,000 (approximately $417,000 at today’s exchange rates) and later traded for up to $1 million, we presume that this unique example has an even higher price tag.