A black 2027 Chevrolet Corvette ZR1X convertible with five miles on the odometer sold on Bring a Trailer today for $441,000. Its window sticker reads $296,100. That is a premium of $144,900, or 48.9 percent, and it arrived one day after Bring a Trailer withdrew a different ZR1X over seller-linked bidding, as we reported earlier today.The price is not the story. The story is that the ZR1X premium, which many buyers had reason to distrust after Monday's withdrawal, came back from a clean sale and came back wider than at either of the last two data points we track.The Carbon Fiber Aero Package, a $13,000 option, adds the rear wing, tall hood spoiler and front dive planes. Photo: Bring a TrailerThe number that matters is the spreadAcross the ZR1X results on Bring a Trailer that MCC has followed this year, the premium over window sticker has moved in a narrow, high band. A 2026 coupe sold in March at 46.6 percent over sticker. A Quail Silver Limited Edition convertible reached $452,000 in May, 55.5 percent over. A 175-mile convertible 3LZ brought 38.0 percent in June, and a Sebring Orange coupe brought 38.5 percent on September 11, the sale we examined in our analysis of the $402,000 ZR1X.Today's 48.9 percent is the widest premium paid for a regular-production ZR1X in that set, and the $441,000 hammer is the highest for a car outside a numbered limited edition. Only the Quail Silver car, a collector-spec special by design, has done better. For a model Chevrolet will keep building, that is a notable result.The window sticker lists a total vehicle price of $296,100 and initial delivery to Chevrolet Van Nuys, California. Photo: Bring a TrailerWhat the buyer paid forEquipment does not explain the spread, because the sticker already prices it. This car carries the $13,000 Carbon Fiber Aero Package, $16,000 carbon-fiber wheels, the ZTK Performance Track Package with Magnetic Selective Ride Control, carbon-ceramic brakes and a front-axle lift system. All of that is inside the $296,100.The comparison that does the work is body style. The September coupe carried a sticker $5,811 lower than this car, yet today's convertible brought $39,000 more. Against the June convertible, today's car was $35,282 higher on sticker and $81,000 higher at the hammer. In both cases the market paid well beyond the factory's own price for the options and the open top. Delivery-mile condition, five miles against 175 in June, almost certainly accounts for part of the difference. Body style appears to account for more.The listing describes a car with a clean CARFAX report, a 1,250-horsepower, 973 lb-ft hybrid drivetrain combining the twin-turbocharged 5.5-liter LT7 V8 with a front-axle electric motor, and a power-retractable carbon-fiber hardtop. It is the specification serious buyers were already asking dealers for, and few dealers could deliver.Adrenaline Red and Jet Black leather, carbon-fiber trim and a carbon-fiber steering wheel with paddles. Photo: Bring a TrailerThe fine print is the real constraintThis car was sold on a Manufacturer's Certificate of Origin and has never been titled to a private owner, so the buyer becomes its first retail owner. General Motors attached conditions to the sale: it must be sold and registered in the United States, it may not go to a broker, wholesale dealer, retail dealer or Montana-based LLC, and the buyer must retain it for at least 12 months or the warranty is void for subsequent owners.Read that clause carefully. A twelve-month retention requirement is the closest thing the new-car market has to a lock-up period, and the winning bidder accepted it while paying nearly 49 percent over sticker. The premium therefore cannot be a flip price. It is a bet that the same car will still command a premium in a year, after Chevrolet's allocation has had time to catch up.What collectors should take from itThe caution is straightforward. This is one sale. Chevrolet quotes no production cap for the ZR1X, and a premium on a model still in production lasts only as long as supply stays tight. We have watched the ZR1 coupe run that arc: $285,000 at launch, then roughly 11 percent over sticker by July. Collectors weighing the ZR1X as a long-term holding should read our future collector car assessment alongside our C4 ZR-1 spec sheet, which shows how the nameplate's earlier halo car found its footing, and the Grand Sport record we covered last week, which shows what a durable Corvette price looks like.What today's result does confirm is that the market's price signal survived its stress test. A day after a contaminated bid forced BaT to restrict accounts, an uncontested sale landed at the top of the regular-production range. Three things will tell us whether the premium holds: the next convertible result, whether BaT tightens bidder verification, and whether 2027 allocations begin reaching dealers in volume.Collectors rarely pay a premium for horsepower alone. They pay for access, and today the price of access to a ZR1X convertible with five miles was $144,900 over the factory's own number.Source: 2027 Chevrolet Corvette ZR1X Convertible 3LZ ZTK, Bring a Trailer, Lot #266,988. Window sticker and ownership terms are from the listing; premiums are calculated against each car's window sticker.⚡ Read the full article on Modern Car CollectorSign up for the Collector Car Market Brief. For the latest news, follow us on Facebook and Instagram.