Bugattis aren't cheap, by any stretch of the imagination. And that's by design, the way the exclusive Alsatian automaker likes it. The current Chiron "retails" for $2.7 million. The Divo, $5.8 million. And older Bugattis from the marque's heyday have been known to trade hands for even more than that. But what about those that have come between?

As the manufacturer itself points out, values of the EB110 and Veyron have been steadily climbing in recent years as well. And all indications are that they'll continue to rise in the coming years as demand for these ultra-exotic hypercars far outstrips supply.

Take the EB110, for example, the 1990s supercar that shocked the world with its 3.5-liter quad-turbo V12, five-valve cylinder heads, and all-wheel drive. At its launch in 1991, the EB110 carried a sticker price of 450 Italian Lira – equivalent to about 230,000 euros. That was for the GT version, which produced 560 horsepower and saw 96 examples made. The EB110 SS was even more exotic, with 610 hp, 32 examples made, and a 550k-euro sticker price. Earlier this year, someone paid over 2 million euros for an EB110 SS. Same goes for the Veyron, which put the marque back on the map in 2005.

Values dipped a bit in the second-hand market from the 1.16 million euros Bugatti originally charged for the Veyron – but they've been climbing again. While the average purchase price for "used" Veyrons hovered around 620k euros in 2011, but climbed to 730k euros by 2013. Now, the automaker assets, "it's virtually impossible to find a Veyron on the market for less than EUR 1.3 million."

"Demand for the Bugatti Veyron has increased in recent years and with it the price," notes Frank Wilke of Classic Analytics. "In fact the price level of some Veyron vehicles is the same as that of the new car."