The past few years, it seems like someone opened the flood gates for barn finds because every time we turn around, there’s another amazing car that’s been found rotting away in a barn or a garage. Most are usually muscle cars, but every now and then, some lucky guy stumbles across an exotic Ferrari or Lamborghini. European supercars are rarely forgotten about, and rare ones never suffer that fate – or at least that’s what we thought. Today, we have a video of a very rare Lamborghini Countach 5000s that hasn’t seen the light of day in some 20 years. Hard to believe, right?

This Is One Rare Lamborghini on this Side of the Pond

If you’re really familiar with Lamborghinis and, more specifically, the Lamborghini Countach, you’re probably about to click your little e-mail button and send me a piece of hate mail just to tell me that this is an LP500 S. Well, you wouldn’t be wrong, but you wouldn’t be right, either. See, this LP500 S was imported into the United States as the 5000 S. Apparently, there were less than 20 of these things imported into the United States, so if you didn’t know about them, there’s your reason why. But, let me give you a little history.

The car you see here was born as an LP500 S in 1982, a mild upgrade over the LP400 S with an updated interior and a larger, more powerful V-12 engine. By larger, we mean that engine displacement grew from 3.9-liters to 4.8-liters. Horsepower increased from 350 to 370 while torque jumped from 263 pound-feet to 308 pound-feet (356-418 Nm). The LP500 S was eventually replaced in the LP5000 Quattrovalvole, which came along with Lambo’s famed 5.2-liter V-12. The euro-spec model features six Webber carburetors and produced 449 horsepower while the U.S.-spec model was fuel injected and had just 414 horsepower.

I fear I’m getting a little off-topic here, so we’ll stop the history lesson there. In the end, Lamborghini built a total of 321 LP500 S from 1982 to 1985, most of which were sold outside the United States market. As for the rare Countach 5000 S that we see in this video, it needs a little bit of love. The owner apparently spent all this time buying parts to switch the carbureted V-12 over to fuel injection and throw in some other upgrades too. The car is in decent shape; however, it doesn’t run and needs a damn good cleaning. This one has been sent to AMMO NYC for a professional detail, and the process will be recorded and shown off in another video, but we’re willing to bet it’ll be up and running again in no time.