The most consequential conversation in the collector-car world this June will not happen at a sale block. It will happen in a room at the Petersen Automotive Museum on Wilshire Boulevard on Sunday, June 7, when the principals of six of the largest auction houses operating in the United States sit down together for the museum’s Collectors’ Summit 2026. Barrett-Jackson, RM Sotheby’s, Gooding Christie’s, Broad Arrow Auctions, Mecum Auctions, and Cars & Bids will share a single panel. For Beverly Hills collectors who have spent the last eighteen months trying to read a market in transition, that is the first time all six voices have been in one place this year.

What the morning actually delivers

The Petersen has structured this as a curated reception rather than a conference. Doors open with a morning reception that includes a curated breakfast and complimentary mimosas, followed by the panel itself, then museum admission and Vault access for the remainder of the day. The ticket bundles all three. The Vault, for anyone who has not been down the elevator since the 2023 reinstallation, currently holds the museum’s working collection of pre-war American classics, post-war European sports cars, and a rotating display of recently acquired one-offs that do not yet have a place upstairs. Walking the Vault with mimosa-fluent collectors after a panel that has just argued about what those cars are worth is the entire point of the morning.

Why this panel matters now

The auction calendar Beverly Hills collectors care about — Monterey Car Week in August, Amelia Island in March, the late-fall European sales — is structured around the calendar judgments these six houses make. Pebble Beach catalogs are being finalized this month. Gooding Christie’s, formally combined since late 2024, is running its first full Pebble Beach as a merged house. Broad Arrow is in its fifth Monterey and is increasingly the house that other houses’ specialists move to. RM Sotheby’s is testing higher reserves on first-series 911s after a soft 2025 spring. Mecum has just published the Monterey 2026 docket. Cars & Bids represents the online-native segment whose data on sub-$250,000 cars now sets the floor that the legacy houses have to clear at preview.

Putting these six on one stage in early June, before any of them has shipped a catalog to a Pebble Beach consignor, is not accidental timing. It is the closest thing the U.S. collector-car market has to an open-board reading of where reserves should land in August.

What collectors should listen for

Three signals are worth tracking. First, how the panel describes the spring auction season that just concluded. Amelia Island and the Bonhams Goodwood preview both delivered uneven sell-through in the mid-six-figure brackets — the cars that fund most major restorations and most major moves in personal collections. If the panel converges on a soft read of spring, August catalogs will reflect it.

Second, listen for what they say about preservation. The summit’s stated frame is the future of automotive collecting and the vital importance of vehicle preservation. That second phrase is doing work. The market has shifted in the last two seasons toward documented preservation cars over restored cars in the same model. A panel that emphasizes preservation language in June will be a panel whose August previews emphasize it too — and that changes what an unrestored, never-touched example is worth at consignment versus a fully redone car of the same provenance.

Third, watch how Cars & Bids is treated by the legacy houses on the same panel. Whether the conversation positions online-native venues as a complement, a feeder, or a competitor will tell collectors a great deal about the price floor in the segment below $250,000 — the segment that increasingly funds entries into the segment above it.

Asset relevance for Beverly Hills collectors

For anyone holding a six- or seven-figure collection in West Los Angeles, the Collectors’ Summit is the rare event where the calendar’s pricing logic is articulated in front of you rather than inferred after the fact. Collectors who use parts of a collection as a liquidity reserve — bridging a real-estate close, funding a fine-art acquisition, covering a tax event — read these reads to time consignments. A car offered into a strong August catalog clears at a different price than the same car offered into a soft November sale. The Summit is where those two scenarios get distinguished out loud, six months before the consignment letter goes out.

It is also where the houses meet the lenders and dealers who quietly underwrite collection moves between sales. Borro’s relationship with West Los Angeles collectors over the last decade has been built almost entirely on the assumption that a Petersen-quality car holds a known, defensible value through a six-to-twelve-month liquidity bridge. The Collectors’ Summit is, in plain terms, the room where that assumption gets refreshed for 2026.

Event details

• Date: Sunday, June 7, 2026
• Venue: Petersen Automotive Museum, 6060 Wilshire Boulevard, Los Angeles
• Format: Morning reception, panel discussion, full museum admission, Vault access
• Panelists: Senior representatives from Barrett-Jackson, RM Sotheby’s, Gooding Christie’s, Broad Arrow Auctions, Mecum Auctions, and Cars & Bids
• Tickets: Available via the Petersen events page at petersen.org/events/collectors-summit-2026

Reservations are required. The Vault portion of the morning is the most space-constrained, and curated breakfast capacity has historically driven the ticket cap at past Petersen morning programs.

The takeaway

Beverly Hills collectors looking at the late-summer and fall auction calendar should treat June 7 as the first reliable read on what the six houses think 2026 looks like. Walk the Vault afterward, talk to the specialists who stay for the reception, and leave with a sharper sense of which cars in your own collection should be on a Pebble Beach consignment letter and which should sit through to Scottsdale 2027. That single morning, in that single room, is worth more than a season of post-sale analysis.