As time passes, sports cars have become less about the raw feeling of driving and more about being technological tour-de-forces. That's not always a bad thing. But, for the driving purists among us, it can be a bit of a letdown. That sentiment has shown itself in the way the collector's market is going. Buyers are valuing classic cars that deliver the pure analog feeling that many of today's cars just can't. As a result, their prices are either bottoming out or skyrocketing.We've chosen 5 cars that give the raw, analog experience that collectors are really going for now. They're mainly sports cars, but there are a couple of more muscular rides from Ford and Dodge as well. If you decide to buy one of the machines below, you're guaranteed to have a car that drives brilliantly and will only increase in value. Mazda MX-5 Miata (NB) Average Used Value: $10,540 MazdaThe NB generation of the Mazda MX-5 Miata doesn't get as much praise as the initial NA generation. But, that doesn't mean it lost that signature, no-frills, analog sports car feel. If anything, it's actually better than the NA. The 1.8-liter engine of the NB is more powerful than the one in the NA. In a car that's barely heavier, that makes for a significant performance advantage. The only thing that gets the NA cool points over the NB are its pop-up headlights.The Miata is the cheapest car here. You can get one for around $10,540. But, those values are definitely on the rise as more collectors and enthusiasts catch on to how good these cars really are. If you've ever wanted to own an NB Miata, now's the right time to buy in. Dodge Charger R/T (Second Generation) Average Used Value: $105,286 MecumThe second-generation Charger R/T is one of the most famous muscle cars of all time. It's also a proper, analog driving experience straight from the golden age of American muscle. That's only made better if you're lucky enough to find an example fitted with the legendary 426 Hemi, an engine that was a true performance monster for its time.The Charger R/T is the first car on this list to go into six figures with its average used value. You can expect to pay around $105,286 for one of these. People love classic Mopars, and they're only going to become more and more desirable as time passes and the rowdy nature they're loved for falls further into the past. Nissan Skyline GT-R (R33) Average Used Value: $138,444 Bring A TrailerNo car is more synonymous with '90s Japanese performance than the Nissan Skyline GT-R. The R33 generation may not be the most recognizable or the most celebrated, but it's one that collectors really want now. In terms of analog sports cars, this is among the most advanced out there. It's all-wheel-drive, and has plenty of tech that was advanced for the '90s. But, that purist driver appeal is still there, as it only came with a 5-speed manual transmission.If you want to buy an R33 GT-R today, you'll have to pay around $138,444. That's a lotof money for a car that isn't that impressive by modern performance standards. However, it's an absolutely iconic machine that influenced so many cars that came later. Plus, with those sharply rising values, it's guaranteed to be a fantastic investment. Ford Mustang SVT Cobra R Average Used Value: $210,000 MecumIf you think of a classic, high-performance Mustang, you'll certainly think of the ones from the golden age of American muscle. But, the SVT Cobra R Fox Body Mustangs are quickly becoming the next high-value iteration. Powered by Ford's 302 cubic-inch (5.0-liter) small-block V8, this was the purest expression of Mustang performance that Ford could sell you back in the early '90s. It was completely stripped of anything that wasn't necessary for making it go fast. It didn't have a radio, air conditioning, sound deadening or even rear seats. This car was designed for maximum on-track performance, and to be properly raced. That's something that some owners actually did. It competed in multiple sports car championships in North America and Europe.Fox Body Mustang Cobra Rs very rarely come up for sale. When they do, they go for huge amounts of money. The average value for one right now is $210,000. That makes it one of the most expensive Mustang variants on the used market. But, considering how unique and raw it is, it's one of the best you can buy. Porsche Carrera GT Average Used Value: $2.8 Million Bring a TrailerThe Carrera GT is often considered to be the single greatest car Porsche has ever made. The side effect of a racing engine program not quite working out, this is pretty much thefinal raw, all-analog supercar ever made. That V10 screams at you just behind your ears, its transmission is notoriously difficult for first-time drivers to get used to, and it's known for being incredibly hard to handle. You really need to be a skilled driver to get the most out of it. But, if you are, it rewards you in spades.The Porsche Carrera GT is, unsurprisingly, the most expensive car on this list by a longway. The average used value of these cars is an astonishing $2.8 million. That value is constantly going up, though. If you can afford to buy a Carrera GT, it might be one of the best multi-million dollar investments out there.