One of the most-loved kinds of cars by enthusiasts is classic Supercars. They're much more outrageous than the supercars of today, both in terms of the way they drive and the way they look. The driving experience part of things is the most important. They're rawer than modern equivalents, rewarding skilled drivers much more. Because a modern supercar just can't match the driving experience these cars can give, they're becoming incredibly desirable. That desirability is only pushing values up and up.Every car on this list is an analog supercar that's now incredibly desirable on the used market. They have a lot of differences between them. Some of them are even not as analog as the others. But, that doesn't take away from the fact that they're all cars with that rawer feel you won't get from a modern supercar. Jaguar XJ220 Average Used Value: $529,926 MecumThe Jaguar XJ220 has often had a reputation for being a 'nearly' car. It was originally supposed to have a powerful V12, but it ended up having a twin-turbocharged V6 instead. That wasn't the worst thing in the world, though. This still ended up having 542 horsepower, and it briefly held the record for the fastest production car in the world. It's also one of the best-looking '90s supercars, thanks to those swooping lines and pop-up headlamps.MecumIf you want to get a Jaguar XJ220 now, you can expect to pay around $529,926 for one. Values are still rising, too, with some examples now selling for over $600,000. Give it a few more years, and we could see XJ220s selling for $1 million or more. Lamborghini Diablo Average Used Value: $545,699 Bring A TrailerThe Lamborghini Diablo was Sant'Agata's wedgy offering for the 1990s. While its styling may have been a bit toned down compared to the Countach (we're going to get onto that car a bit later...), it was still very striking. It also went through a huge amount of evolution over its lifespan - arguably more than the Countach that came before it. Its most powerful variants also produced over 500 horsepower, making the Diablo a genuine performance monster for its time.MecumAcross all its different variants, the average used value for the Lamborghini Diablo is $545,699. If you want one of the rarer, higher-performance variants like the SE30, you could end up going into seven figures. Those values aren't likely to go down any time soon, either. The demand for more outrageous, old-school analog-feeling supercars from collectors is only going to get higher with time. It may not be that long before even more ordinary Diablos are million-dollar cars. Ford GT (First Generation) Average Used Value: $662,366 Bring a TrailerThe first-generation Ford GT is a car that slightly divided opinions at launch. But, now, in an era where analogue supercars have all but disappeared, its more old-school ethos is much more celebrated. This car has the 5.4-liter supercharged version of Ford's Modular V8, producing 550 horsepower and 500 lb-ft of torque. In a car as light as the GT and with a proper 6-speed manual transmission, that results in a seriously fun driving experience.Via: Bring a TrailerThe first-generation GT is now worth around $662,366 on the used market. That seems almost criminally high for a Ford. But, considering what it is, that could be worthwhile. Lamborghini Countach Average Used Value: $692,122 Bring a TrailerThere aren't many supercars that are more legendary than the Lamborghini Countach. This is the original wedge-shaped Lamborghini, and it set the stage for the Diablo and Murcielago that came after it. The original LP400 models first appeared all the way back in the 1970s, and it's powered by a 370 horsepower 3.9-liter V12. The Countach evolved a lot over its production run, with the engine getting bigger and more powerful. The Countach's exterior also became wilder as part of that evolution, bringing it into the excess of the '80s by adding flares and spoilers.Bring a TrailerAcross all its variants, the average value of the Countach is $692,122. If you want a rarer model, it's definitely getting into the territory of being a million-dollar car. For true Lamborghini afficionados with money to burn, that huge price will absolutely be worth it. Porsche Carrera GT Average Used Value: $2.9 Million PorscheThe Porsche Carrera GT has been hallowed among enthusiasts ever since it first appeared. That's because it truly is one of the most special cars ever made. This is the only production Porsche to ever have a V10 engine. A leftover from a failed motorsport project, it's one of the most powerful cars here with 603 horsepower and 435 lb-ft of torque.The Porsche Carrera GT is now one of the most valuable supercars on the market. If you want one, you can expect to pay just shy of $3 million. It's not surprising that it's worth this much, though. In the world of Porsche, this car is 100% unique. It's also arguably the best analog supercar ever made. Ferrari F40 Average Used Value: $4.2 Million FerrariThe F40 is often thought of as being one of the greatest Ferraris ever made, if not the greatest. It's raw, uncompromising and was the final Ferrari project to be personally approved by Enzo Ferrari himself. That 2.9-liter twin-turbocharged V8 is old-school in every sense of the word. That includes a lot of turbo lag! It's also got a completely stripped-out interior, no power steering and body paint that's so thin you can actually see the carbon-fiber weave beneath it.Via: Mecum AuctionsThe F40's legendary status means that it's now got an average used value of $4.2 million. That value is only going up and up, too. Every wealthy supercar collector wants to have an F40, and that demand will keep prices incredibly high. Ferrari F50 Average Used Value: $9 Million MecumIf you're trying to replace a car as legendary and beloved as the F40, what do you do if you're Ferrari? The answer Maranello chose was to make something completely different. Instead of a twin-turbocharged V8, the F50 has a naturally aspirated V12. It's also a roadster instead of a coupe, and it's much more rounded and stylish than the wedgy F40. But, that doesn't mean it isn't a raw, analogue supercar that can give you a hell of a driving experience!MecumEven though the F50 isn't as celebrated as the F40, it's actually worth more money on the used market! You can expect to pay around $9 million for one of these now. As the demand for analog supercars increases, the values of these will only increase too. Pagani Zonda Average Used Value: $10.1 Million PaganiFor anyone who grew up during the 2000s, the Pagani Zonda has to be the ultimate expression of a crazy supercar. The Zonda has evolved the most out of all the cars on this list, with a whole bunch of crazy variants. It's also the only car on this list that's technically still made today - you'll have to put in a very nice request to Horacio Pagani to get a brand-new Zonda, though!PaganiAcross all the different versions of the Zonda, the average used value for these cars is around $10.1 million. With how prized the Zonda's becoming among supercar collector, those values are going to stay eye-wateringly high. It's a truly special car, and you won't see anything else like it in today's automotive climate. Ferrari Enzo Average Used Value: $11.8 Million (here) MecumThe successor to the F50, the Ferrari Enzo was something different yet again. It kept the idea of having a mid-mounted, naturally aspirated V12, but this time it was a coupe instead of a roadster. It also doesn't have a traditional manual transmission. Instead, it has an automated manual with Formula 1-style paddleshifters. While that might not be the most pure and analog-feeling transmission compared to other cars on this list, it's still an analog supercar in every other way.MecumThe Enzo is one of the most valuable modern Ferraris around. The average used value of one is around $11.8 million. It is a V12 Ferrari, after all, and they always end up becoming valuable on the used market. But, this one really is for the wealthiest collectors only, and it's only going to get more valuable in the future. McLaren F1 Average Used Value: $25.3 Million McLarenWhen we're talking about analog supercars, it's impossible to not mention the McLaren F1. Many people argue that it's the greatest road car ever made, and they might not be wrong. This is, after all, the car that held the top speed record for a production car for years until the Bugatti Veyron beat it. It's also still the fastest naturally aspirated production car ever, as every car that's taken the fastest production car record since has either used a forced induction engine or electric motors.Via: RM Sotheby'sThe McLaren F1 is the most valuable car on this list, and that value shows no signs of going down. Across all its variants, the average used value of the F1 is now $25.3 million. This really is one for the wealthiest collectors only. Anyone who bought one while they were a lot more affordable will have also made an amazing profit!Sources: Classic.com, Ferrari, Ford, Jaguar, Lamborghini, McLaren, Pagani