In what might be the most expensive game of pass-the-parcel ever played, the one-off Pagani Zonda Riviera has popped up for sale again, this time at Germany's Amian Collection Cars. And before you ask about the price - if you have to ask, you probably can't afford the paperclips in its service manual. A Brief History Lesson Let's rewind a bit. The Zonda Riviera started life as a humble (if you can call any Zonda humble) Zonda F. Then, in 2017, someone with more money than sense decided that a regular Zonda wasn't quite special enough and commissioned this one-off version. It was initially delivered to a collector in Saudi Arabia, who presumably got bored of it rather quickly, as it was auctioned off two years later for $5.5 million - about the price of a decent-sized mansion in most places. What Makes It Special This isn't just any Zonda - it's based on the legendary 760 specification, which means its Mercedes-AMG-sourced 7.3-liter V12 produces 750 horsepower and 575 lb-ft of torque. That's 156 horsepower more than the Zonda F it started life as, which is like giving Superman an extra cape and a double espresso. The exterior is finished in pearl white with enough exposed carbon fiber to make a Formula 1 car blush. There are blue accents everywhere because apparently, it's meant to remind you of the French Riviera - hence the name. It's got twin carbon canards on either side, a carbon splitter, carbon fender flares, a carbon roof scoop, and a shark fin. It's like someone at Pagani discovered carbon fiber and decided to use all of it. The Interior Story Inside, it's a similar story of excess. There's polished carbon (of course there is) and black aluminum everywhere, with seats wrapped in blue leather that probably came from cows that lived better lives than most people. The headliner is alcantara, because regular fabric is for peasants. Market Implications The fact that this car is back on the market is interesting. One-off Paganis usually disappear into private collections never to be seen again, like rare Pokemon cards or my enthusiasm for morning jogs. But the Riviera keeps popping up, suggesting either that its owners get bored easily or that there's a very expensive game of automotive musical chairs happening among the world's billionaires. The price isn't disclosed, but given that it sold for $5.5 million in 2019, and the market for special Zondas has only gotten more insane since then, you could probably buy a small island nation for what they're asking. Or at least its parliament building. What's particularly fascinating is that this car represents the peak of Pagani's art of transformation. They took a Zonda F - already an incredibly special car - and turned it into something that makes regular Zondas look like they came from a supermarket's own-brand range. Now, if you'll excuse me, I need to go sell my house, my organs, and possibly my soul. Though I suspect even that wouldn't cover the cost of the Riviera's windscreen wipers.