The poor man's GTO. That's what collectors call the Ferrari 275 GTB – the model that followed (and built upon) the 250 series. But while values haven't reached the same levels as its legendary precursor, they're climbing. And we could easily see this one sparking a bidding war when it comes up for auction next month.

This, you see, is the very first 275 GTB that Ferrari made. Chassis number 06003 was a pre-production prototype, and was modified extensively over the course of its lifetime. It was even outfitted to go rallying.

Despite a few notable exceptions, that's not a form of motorsport in which you'd expect to see these horses prancing. But it entered the 34th Monte Carlo Rally in 1966, upgraded with auxiliary lighting, reinforced glass, a locking differential, and more. It didn't win, but driver Giorgio Pianta (who would go on to run Alfa Romeo's competition department) described it as "the most beautiful memory of my life."

Gooding & Company estimates it'll sell for a good $7 million, give or take, when it crosses the auction block in Scottsdale, Arizona, the weekend of January 18-19.

To rich for your blood? This red 1963 250 GT SWB Berlinetta is valued at the same, but there's a a dark blue '63 250 GT Lusso estimated to fetch $1.6-1.8m, and a red '66 330 GTC for $650-800k. All told, of the hundred-plus classics on the docket for this sale, Gooding has 21 Ferraris of varying vintages currently consigned – from Daytonas and Dinos to a pair of 575 Superamericas, an anniversary-edition GTC4 Lusso, a 430-based 16M Scuderia Spider, and a 458 Speciale. (Photos by Brian Henniker, Anna McGrath, Matt Howell, and Mathieu Heurtault, courtesy of Gooding & Company.)