A park filled with hundreds of American muscle cars, classics, sports cars, and hot rods would do it for most petrolheads that have their heads screwed on right. And that is exactly what’s going to be on offer at the Auburn Spring Collector Car Weekend, at the Auburn Auction Park in Indiana, USA, over May 7–9 this year.

Auburn Spring has become a must-attend event on the American automotive calendar, featuring more than just an auction, with a car corral, swap meet, and AACA (Antique Automobile Club of America) Special National Spring Meet.

As far as the auction side of things goes, a range of fine vehicles can be expected, including this 1970 Dodge Challenger R/T. The immaculate muscle car, finished in ‘Lemon Twist’ is powered by the legendary 426 Hemi V8, topped with a rare factory ‘N96’ shaker hood option, and backed by an A833 four-speed manual transmission. Such a desirable car, in this condition, is expected to go for between $340–380,000.

In addition to, and on the opposite end of the spectrum from, the Mopar muscle is this 2006 Ford GTX1 TT ‘Spyder’. The unique supercar is one of only 30 built by the Ford-authorized coachbuilder, Genaddi Design Group, before they ceased business. The striking car is powered by a 5.4-litre V8, producing an astonishing 1000hp, and is expected to go for between $300–350,000.

The Buick Regal GNX is another strange one; though the car design of the ’80s isn’t generally regarded as being the strongpoint of automotive history, it hasn’t failed to make the Buick GNX a highly desirable car. With blistering performance, thanks to its turbocharged six-cylinder engine, this genuine example, with only 119 miles on the odometer is expected to go for upwards of $100,000 — who’d have ever believed that 20 years ago?