Market brief for Wednesday, October 28, 2026. Three stories from the past few days, three different kinds of scarcity: a movie prop that cannot be registered, a pink Road Runner convertible whose color matters more than its engine, and a Porsche in a paint the factory dropped. Prices below come from the auction platforms themselves, and anything we could only confirm through other outlets is attributed.

Acura Is Selling Tony Stark’s NSX Roadster. The Bid Is Pricing a Story, Not an NSX

Acura has put the custom NSX roadster from Marvel’s The Avengers on Cars & Bids with no reserve. As of our check on October 28 the high bid was $120,000 across 19 bids, up from the $98,000 and 15 bidders that Hawaii News Now reported on Sunday. The auction ends Saturday, October 31, at 5:00 p.m. EDT. That is a live bid, not a result.

Red first-generation Acura NSX with aftermarket wheels parked on grass at an outdoor car show — A modified first-generation Acura NSX at a car show, shown for reference. The Avengers roadster is a custom-bodied one-off built on a 1991 NSX. Image: Charles from Port Chester, New York, via Wikimedia Commons (CC0).

What the listing confirms

According to the listing, the car was designed by Acura’s Advanced Design Studio in Los Angeles and built by Trans FX in Oxnard, California, on a 1991 NSX. It carries a hand-built resin and fiberglass roadster body, styled under former Acura creative director Dave Marek to preview the NSX Concept shown at the 2012 North American International Auto Show. Power is the 3.0-liter VTEC V6, rated at about 270 horsepower, through a five-speed manual to the rear wheels. The screen-used “STARK 33” plate is included. The seller says 100 percent of the winning bid goes to a charity chosen jointly by buyer and seller, and that American Honda will reimburse the buyer’s auction fee. Doug DeMuro reviewed the car for the platform he founded.

Why collectors should care

The paperwork is the story. The listing describes a non-registerable manufacturer prototype sold on a bill of sale, as-is, under a usage agreement, and it cannot be titled or driven on public roads. That means the number on the screen is not an NSX value. It is a measure of how much buyers will pay for factory-built, screen-used provenance with a charitable pass-through, and it has no useful comparison to a registered car. For what a titled first-generation car looks like, see our first-generation NSX spec sheet, and for a different kind of NSX provenance, our look at Ayrton Senna’s NSX at RM London. The platform has also tested celebrity association before, as in DeMuro’s $540,000 Ford GT. Because there is no reserve, the final price will simply be whatever clears on Saturday.

A Pink Road Runner Convertible Sets the Tone at Mecum Dallas/Fort Worth

At Mecum’s Dallas/Fort Worth sale (October 21–24 at Dickies Arena), lot S178 on Saturday, October 24, a 1970 Plymouth Road Runner convertible in factory FM3 Moulin Rouge sold for $269,500, according to Mecum’s results page. We could not confirm from that page whether the figure includes the buyer’s premium. The result is a few days old, but the trade coverage that framed it appeared Monday, which is why it sits in today’s brief.

Black Plymouth Road Runner convertible with the top down and a gold side stripe parked on grass at a car show — Another Road Runner convertible, shown for reference and not the pink car sold at Mecum. Image: Triple-green, via Wikimedia Commons (CC BY-SA 2.0).

The car and the caveats

Mecum billed it as one of three Moulin Rouge examples known to exist, with a matching-numbers 383 V-8, matching 727 TorqueFlite and matching rear end, from the Waters Mopar Collection. RACER reports a comprehensive restoration completed in 2021 by Hot Bodz and Custom Rods in Lewiston, Idaho, and an indicated 38,493 miles that Mecum describes as indicated rather than verified. Mecum’s own estimate, relayed by Guessing Headlights, is that about 44 Road Runners left the factory in Moulin Rouge for 1970, six of them convertibles, with roughly three surviving. Accounts of the convertible count differ, so treat these as Mecum’s estimates rather than factory records.

Why it matters

autoevolution reports that the price topped the previous 1970 Road Runner convertible record by nearly $50,000, an unrestored six-barrel car that brought $220,000 in 2025, and that only a $330,000 Hemi hardtop earlier this year and a $314,000 RTS concept from 2019 have gone higher among 1970 Road Runners. We have not independently verified those comparisons. In the same sale, the outlet also reported a triple-black 1971 Cuda 440 Six-Barrel four-speed hardtop at $385,000, a reminder of how much Mopar hierarchy still rewards the big engines. What stands out here is that a 383 car landed in that neighborhood. The thesis worth testing is that a documented rare factory color with a matching drivetrain can outrank engine displacement, at least for one buyer on one Saturday.

The cautions are real. This is a single result, the car is a restoration rather than an unrestored survivor, and a color claim is only as good as the paperwork behind it. Buyers should insist on the broadcast sheet and fender tag matching the FM3 code. For the same documentation logic on a different Mopar, see our piece on replacement Superbird noses, and for another Moulin Rouge car, the 1970 Barracuda we covered ahead of a GAA sale.

A Gold Bronze 718 Boxster Spyder Sold for $141,300. The Paint Is the Variable

On Tuesday, a 2023 Porsche 718 Boxster Spyder in Paint to Sample Gold Bronze Metallic sold on Cars & Bids for $141,300, after 36 bids in a reserve auction that closed at 1:33 p.m. EDT. The car has a 4.0-liter naturally aspirated flat-six, a six-speed manual, a clean Minnesota title, a clean Carfax and about 4,100 indicated miles.

Light gray Porsche 718 Boxster Spyder with black wheels and a black soft top parked on a paved street — A Porsche 718 Boxster Spyder, shown for reference and not the Gold Bronze car sold on Cars & Bids. Image: Alexander Migl, via Wikimedia Commons (CC BY-SA 4.0).

Condition and context

The listing discloses two modifications, an aftermarket exhaust valve remote and clear LED side markers, plus paint protection film on the exterior panels and tires with 2022 date codes. In a pinned comment, the seller says they represent the owner’s estate and that the car was sold because the owner had died. autoevolution reports the original owner paid $133,770 in March 2023, which would put the sale roughly $7,500 above the original price, and cites a Classic.com average near $118,780 for 2023 Spyders. We have not verified either figure. Motorious, citing Stuttcars’ tracking, notes Gold Bronze left Porsche’s Paint to Sample list in a March 2023 update.

Why it matters

A useful comparison is a roughly 1,100-mile Gold Bronze Spyder with PDK and ceramic brakes that reached a $140,000 high bid on PCARMARKET in April 2025, although that page does not confirm whether it sold. Different transmission, mileage and brakes make the two cars imperfect matches, but both point to a premium for a scarce factory color on a manual or low-mile modern Porsche. Treat it as a data point rather than a trend: it is one sale, on a car with aftermarket parts and a 4,000-mile history. Our earlier piece on a Paint-to-Sample 911 GT3 Touring covers how that program creates scarcity.

What to Watch

The NSX roadster closes Saturday evening, and a no-reserve result will show how far screen provenance carries a car that can never be registered. Beyond that, watch whether the next documented rare-color Mopar convertibles are priced like engine-first cars or color-first ones. Prices and listing details above were checked on October 28 against the Cars & Bids listings and Mecum’s results page; secondary reporting is attributed where used.

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