Earlier this year Lamborghini gave itself a rather extravagant 50th birthday present: the Veneno Roadster.

The Veneno is based on the same all-carbonfibre chassis as the Aventador and a 740bhp version of the towering 6.5-litre V12 engine.

The interior features bucket seats made from forged composites, with woven carbonfibre ‘CarbonSkin’ upholstery.

Then there’s the styling, which looks like the Batmobile crossed with a EuroFighter. Appropriately, the Veneo Roadster was unveiled on an Italian aircraft carrier.

And the price? A cool £2.6 million. Before taxes. Only nine have been built and the last of those has cropped up for sale on German classifieds website Mobile.de.

The car in question is being offered by the elegantly-named GT Golden Real Estate and Luxury GmbH, which appears to be a high-end concierge service based at the five-star Hotel Adlon Kempinski in Berlin.

Quite how they are in a position to offer the last Veneo Roadster for sale is unclear. Only an example image of the Veneno Coupe, shown at the 2013 Geneva Motor Show, appears on the advert. And there is a very interesting line which reads “subject to changes, errors and prior sale.” Make of that what you will.

What is clear, though, is that the price (which includes German VAT at 19 per cent) is EUR5,699,999, more than £4.5 million.

Whatever the whys and wherefores, there are unlikely to be many other opportunities to buy a Lamborghini Veneno Roadster any time soon – the rest have almost certainly been squirreled away in private collections. So it’s got to be worth a phone call, at the least.