Global Auction Roundup: What's Crossing the Block Over the July 4th WeekendThe summer auction calendar tends to explode in August, when the industry decamps to Monterey and Pebble Beach. But the July 4th weekend of 2026 offers a quieter, more European affair, headlined by a single blockbuster live sale in the Bavarian Alps and rounded out by a pair of timed online auctions running across the holiday. Here is a global roundup of everything crossing the block between July 3 and July 5.The Headliner: RM Sotheby's Returns to Lake TegernseeThe marquee event of the weekend belongs to RM Sotheby's, which returns to Lake Tegernsee for its second live sale in partnership with the Concours of Elegance Germany. The auction takes place Saturday, July 4, at Gut Kaltenbrunn in Gmund am Tegernsee, with a preview running from 10:00 a.m. and the gavel dropping at 4:00 p.m. CEST. Cars remain on display through Sunday, July 5, against the backdrop of the Bavarian Alps.The catalogue is tightly curated at just 24 lots, weighted heavily toward modern German and Italian collectibles. The undisputed star is a 2015 Koenigsegg One:1, one of the rarest hypercars of the modern era, carrying a pre-sale estimate of €8,000,000 to €10,000,000. It is a fitting headliner given that the Swedish marque is only now beginning customer deliveries of its four-seat Gemera, a story we covered when Koenigsegg's 2,300-hp Gemera mega-GT began reaching customers.AdvertisementAdvertisementBehind the One:1, the depth of the sale is genuinely strong. A 2009 Ferrari 599XX Evo is estimated at €2,000,000 to €2,500,000, a 2004 Porsche Carrera GT at €1,200,000 to €1,600,000, and a 2023 Ferrari 812 Competizione at €1,250,000 to €1,500,000. Modern homologation specials and youngtimer icons fill out the rest, including a 2006 Mercedes-Benz CLK DTM AMG Cabriolet (€450,000 to €550,000) and a 1990 Mercedes-Benz 190 E 2.5-16 Evolution II (€250,000 to €280,000). Admission is restricted to registered bidders, consignors, and qualified media.Timed Online Sales Bridging the WeekendTwo online auctions straddle the holiday for collectors who cannot make it to Germany. Artcurial's "Le Mans Classic Legend" online sale, tied to the historic-racing festival at the Circuit de la Sarthe, runs June 17 through July 8, keeping bidding open all weekend. Meanwhile, Iconic Auctioneers, the recently rebranded Silverstone Auctions, is running its O2 Silver Clef Charity Auction from July 1 through July 9 in support of the music-therapy charity Nordoff and Robbins. Iconic is familiar to our readers from its high-profile UK consignments, including Anthony Hamilton's £3 million collection headed to the block.The Big Names Sitting This One OutFor completeness, the other major houses have nothing live over these specific dates. Mecum's next event is Harrisburg on July 22-25, while Gooding Christie's is holding fire until the Pebble Beach Auctions on August 14-15. Barrett-Jackson, fresh off its Midwest debut where we watched the company post $38.1 million and a record Boss 429 in Columbus, does not return until its Las Vegas sale in September. Bonhams and RM Sotheby's both have UK sales the following week, at Edinburgh and Woodcote Park respectively.Reading the MarketA Koenigsegg One:1 leading a lean, blue-chip catalogue is very much in keeping with the pattern we have been tracking all year, in which the very top of the market continues to set records while the middle softens. Readers wanting the fuller picture should revisit our analysis of a two-speed collector car market as the top sets records and the middle cools. It is also worth noting how much of this weekend's action orbits Le Mans, a reminder of how central endurance-racing provenance remains to values, as we saw when Mazda's Le Mans history headed to Mecum Monterey.AdvertisementAdvertisementEstimates and lot details reflect figures published by the auction houses and should not be read as independent valuations. Modern Car Collector will report results as they are confirmed.Join our Newsletter, follow our Instagram page, and follow us on Facebook.