Maserati has made some lust-worthy cars over the course of its century-long history and still does. But one of our favorite Maseratis wasn't actually made by Maserati. It was made by Zagato, drawing inspiration from one it designed for the Trident marque decades ago and incorporating Maserati mechanicals.

It's called the Mostro, and it debuted at the Concorso d'Eleganza Villa d'Este in 2015 to help celebrate Maserati's centenary. Only five examples were built, and they were all surely snapped up rather quickly. But if you missed your opportunity, this rather spectacular example is coming up for auction.

The modern Mostro was inspired by the 1957 Maserati 450 S that was known by the same name as this modern interpretation, due to the monstrous power it packed that made it one of the most potent front-engined racing cars in the world – from when Sir Stirling Moss drove it at Le Mans in 1957 well into the 1990s.

To revive the spirit of the original, Zagato draped its unique bodywork with pontoon fenders, swept-back greenhouse, and short-deck over a custom carbon monocoque chassis. Ahead of the cockpit but behind the front axle sits a 4.2-liter V8 driving the rear wheels through a six-speed semi-automatic transmission.

It's the same engine that Ferrari developed for the Maserati GranTurismo and MkV Quattroporte. But in this application, it was fitted with a dry sump and produced an undisclosed but estimated 460 horsepower (which is more than it ever did in any "official" Maserati).

Designed more for the track, this example has never actually been registered for use on the road (though it could be), and is said to have covered less than 1,000 kilometers (~620 miles). Bonhams projects it will fetch somewhere between $660k and $1 million when the gavel drops at Le Grand Palais in Paris on February 6.