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Some classics wear their price tags on their sleeves. Look at a fuel-injected ’57 Chevy Bel Air, and it’s immediately apparent that it’s valuable merchandise. On the other hand, there are the sleepers of the classic car world, the cars that are worth a lot of money but it’s only obvious to those in-the-know. Your Accord-driving neighbor would, for example, never guess that the proceeds from a restored VW microbus could put his kid through college at a very good state school. Here are five you’d never suspect of being quite pricey:

Volkswagen “Samba” Microbus: There’s a simple rule of thumb with VW Microbuses: More windows equals more money. The 21- and 23-window versions of the venerable ’50s bus can bring money that would shock the hippies who ran them into the ground in the 1960s—around 70 grand for a nicely restored one. They’ve even been known to break $100,000 at the right auction.

Fiat Jolly: The Jolly was an open-top version of the classic Fiat 500 that was meant to be stowed onboard yachts and used as transport in places like Monaco and Positano. They have no doors, the seats are made of wicker and the tops are meant only to provide shade. Appallingly cute, the pint-sized Jolly can sell for upwards of $70,000.

Toyota FJ40 Land Cruiser: The classic Jeep-like 1960-1984 Toyota Land Cruiser was one tough vehicle—so tough that they invited horrific abuse, which explains the dearth of clean examples. A nicely restored one sold at an auction in Scottsdale, Ariz., last January for $88,000. We’ve heard stories of $100,000-plus examples. In response to FJ40s getting so expensive, first-generation 4Runners are starting to increase in value. Don’t say we didn’t mention it.

Ford Bronco: The humble 1966-77 Ford Bronco was a product of the same team that brought us the classic 1964½ Mustang. Unlike the Mustang, which sat on Ford Falcon underpinnings, the first Bronco was a totally unique platform.  The size and shape were just right, and collectors have latched onto them in droves. Totally stock, unrusted Broncos without cut fenders and flares are rare; it takes around $30,000 to get a nice one.

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    BMW Isetta: Prior to becoming known as the ultimate driving machine, BMW suffered from a case of bipolar disorder, selling the super-expensive V-8 507 roadster and the tiny egg-like Isetta microcar out of the same showrooms.  It’s no shock that the gorgeous 507 roadster sells for a ton of money, but the fact that Isettas can pull more than $40,000 is surprising indeed.

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