Mecum Auctions' upcoming Indianapolis 2020 event (July 10-18) is going to be jampacked with a massive list of lots that will blow your socks off. From the cars within the John Atzbach and Richard Welkowitz collections and more, there's going to be something for every car collector. out there. Below are ten cars that carry some serious prestige that just needs to be seen. Check them out down below and be sure to learn more about the event by clicking the button directly below.

23-Mile 2018 Bentley Continental GTC Supersports

The Supersports convertible accelerates from 0 to 60 MPH in 3.7 seconds, all while en route to a blistering 205 MPH top speed. Any four-seat convertible that can do that is a rare thing, but this 2018 Supersports convertible is even more select with its miniscule usage of just 23 miles.

1964 Shelby 289 Independent Competition Cobra

In 2013, CSX2487 was acquired by John Atzbach, who has lovingly maintained the Cobra in a climate-controlled environment along with the rest of its stablemates in his very impressive Shelby collection. This documented Independent Competition Cobra is accompanied by important historical artifacts and period photographs from the 1960s.

1967 L88 Corvette, Serial No. 21550

This 1967 L88 Corvette, Serial No. 21550, has an unquestionable pedigree as the best-documented example of its kind in the world. Documented with the original tank sticker, window sticker, order form, shipper copy, dealer invoice, factory inspection form, factory ID card, vintage photos, complete ownership history and a remarkable racing career, there is no other 1967 L88 Corvette with equally extensive or impressive documentation. This car is also the only 1967 L88 Corvette to retain its complete original engine, consisting of the original engine block, heads, crankshaft, rods, pistons, lifters and valve train.

2011 Ferrari 599 GTO w/168 Miles

With the legendary GTO moniker, this special 168-mile Ferrari is one of only 599 produced worldwide. Finished in Rosso Corsa complemented by the distinctive Scuderia shields, the 599 GTO—one of 125 exported to the U.S. market—is a superb example of a state-of-the art front-engine V-12 layout from Maranello circa 2011.

1 of 4 1966 Shelby GT350 Convertibles Built

In this collector car world where rare rag-top muscle cars command the most premium of prices, the four 1966 Shelby GT350 convertibles stand out as displaying a level of rarity and desirability that would be extremely difficult to match. In addition, though all four of the original 1966 GT350 convertibles remain in existence today, the balance of the other three cars outside of 6S2375 have now found homes in collections where it remains remarkably unlikely that these other three cars will trade hands any time soon, or ever again.

50th Anniversary Aventador Roadster w/88 Miles

No. 22 of 100 produced worldwide and one of only 43 destined for the U.S., this arresting 2014 Lamborghini Aventador LP-720/4 Roadster 50th Anniversary has been part of the Richard Welkowitz Collection since new, and it’s being offered with a mere 88 miles on its odometer.

Bill Holland’s 1949 Indianapolis 500 Winning Blue Crown Spark Plug Special

After back-to-back close misses, Bill Holland won the 1949 Indianapolis 500 in this beautiful cigar-shaped No. 7 Blue Crown Spark Plug Special. While any Indianapolis 500-winning car is special, this example is one of a precious few that unquestionably qualify for an exclusive club. It is one of the most successful cars of all-time at the fabled Indianapolis Motor Speedway. In addition to winning the 1949 Indianapolis 500, Holland impressively finished second in the 1947, 1948 and 1950 races in this machine, making it quite simply one of the landmark cars in Indianapolis 500 history.

Never-Titled 2018 Ford GT

Never titled and sold on the MSO from the original Ford dealership, this stunning 2018 Ford GT has traveled 34 miles since new; the winning bidder will be the original and first registered owner of this car. Powered by a twin-turbocharged and intercooled 3.5L/647 HP DOHC 24-valve EcoBoost engine mated to a 7-speed dual-clutch automatic transmission with paddle shifters, this Ford GT is finished in a red exterior with unique painted-on white stripes and Xpel paint protection film.

2016 Rolls-Royce Dawn w/ 9 Miles

Not that you’re likely to get a chance to notice, but, even at its speed-limited 155 MPH, the Rolls-Royce insignias at the center of the 10-spoke alloy wheels stay upright, just as they do wherever you’re parked. With an MSRP of $406,520 and a mere 9 miles on its odometer, this Diamond Black example effectively promises its next owner a new Dawn.

 2019 Porsche 911 Speedster w/ 113 Miles

Sequence Build No. 1,373 out of a total limited production output of just 1,948 examples, this 2019 Porsche 911 Speedster is in “as-new” condition with just 113 original miles. Optioned with the Heritage Design Package, a $24,510 extra, it features two-tone leather interior appointment, black brake calipers with white “PORSCHE” script, gold “SPEEDSTER” badging, classic Porsche crests and silver-colored wheels.