A 575M V12 in a hand-built 250 GTO body. No reserve, £205,000.

Good morning. In 1985, a man in Northamptonshire started building a Ferrari 250 GTO in his own shop. It took him about seven years. This afternoon, with no reserve, the internet decides what those years were worth.

The car is a Ferrari under the skin, just not that Ferrari: a shortened 400i chassis, a 575M Maranello V12 and a six-speed manual from a 550. So today's issue stays in Maranello for the engineering and the economics, with a stop at Stellantis, which lost half a billion dollars last quarter and called it progress.

In today's newsletter, we'll get into:

Let’s roll.

The original 250 GTO was Ferrari's answer to the aerodynamic limits of the 250 GT SWB, developed in 1961 for the GT championship and built by Scaglietti in aluminum. Thirty-six were made from 1962 to 1964. This is not one of them, and it doesn't pretend to be.

Its owner began building it in 1985 at his restoration shop in Northamptonshire, England, starting with the chassis of a right-hand-drive Ferrari 400i. He shortened the 400i's oval-tube frame to the GTO's 2,400 mm wheelbase and built a GTO-style spaceframe on top. The aluminum body came from a UK Ferrari parts supplier, which claimed at the time that Scaglietti had made it; nothing in the listing documents that. The body was widened about two inches per side to clear the 400i's wider track. It took about seven years to finish and has since toured Europe and run club races and hillclimbs.

The first engine was a 4.4-liter Colombo V12 from a 365 GT4. In 2009, the owner swapped in the 5.75-liter F133 V12 from a 575M Maranello and changed most of what feeds it: Jenvey individual throttle bodies, a custom cast intake manifold, custom exhaust manifolds with no catalytic converters, and a DTAFast sequential ECU. A 550 Maranello six-speed manual, Wilwood brakes with adjustable bias, adjustable coilovers on 365 GT4 suspension and hubs, a foam-filled aluminum fuel tank and staggered 15-inch Borrani wire wheels under flared fenders went in at the same time. A 2009 dyno sheet shows about 601 hp at 7,000 rpm and 471 lb-ft at 6,000 rpm. The factory rated the same engine at 508 hp.

Inside, it's a race car with leather on it: fixed-back buckets, Willans harnesses, a gated shifter, a fire suppression system and Veglia gauges. The odometer reads 33,000 miles, true mileage unknown, and the speedometer isn't connected. The dealer estimates about 18,000 miles since the build. The timing belts were replaced in 2025, the throttle bodies were rebuilt in May, and the car was repainted red from yellow about six months ago. It comes with build photos, invoices and its British V5C, which registers it as a Ferrari first registered in 1979.

Sports Purpose, a BaT Local Partner in Bicester, is selling it on dealer consignment. Bidding stood at £205,000 (about $273,000) on Thursday, with no reserve. The auction closes this afternoon at 1:00 PM ET.

My call: No reserve makes the hammer price the real number, and I think it lands between £240,000 and £270,000, about $320,000 to $360,000. What a buyer gets is a modern Ferrari V12 with a manual gearbox in a car that has been raced, toured and maintained by the person who built it. The part I'd want to see before bidding is the 2009 dyno sheet next to a fresh one, since that 601 hp figure is 17 years old.

On Wednesday, Ford reported third-quarter net income of $2.0 billion on $49.5 billion in revenue and raised the bottom of its full-year profit forecast to $10.5 billion. Stellantis, the parent of Dodge, Jeep and Ram, reported a net loss of €453 million, about $503 million, on an adjusted operating margin of 0.7%.

Stellantis presented the loss as good news because a year ago it lost €4.53 billion (about $5 billion), much of it from writing down its U.S. EV plans. Losing 90% less is the headline it chose.

The improvement came from North America, which swung from a €475 million operating loss to a €64 million (about $71 million) profit. Ram did most of the lifting: U.S. Ram 1500 sales rose 73%, helped by the return of the Hemi V8. Dodge got one line in the release, Durango sales up 14%.

Europe went the other way. Shipments rose 10%, but the region lost €311 million (about $345 million) on pricing and mix, the only region in the red.

Cash is the part to watch. Stellantis burned about €4.0 billion (about $4.4 billion) in industrial free cash flow in the quarter. CEO Antonio Filosa reaffirmed guidance and said cash flow turns positive in 2027. His next chance to explain how is a combined strategy and Maserati day on December 10 in Modena.

Most production engines breathe through a shared intake: one or two throttle plates feed a plenum, and the plenum feeds each cylinder through a runner, leaving a large volume of air between throttle and valve. The 575M's F133 V12 came from the factory set up along those lines, with Bosch engine management that measured incoming airflow and calculated fuel from it.

Individual throttle bodies move the throttle to the other end of the runner. The Jenvey kit on this car gives each of the 12 cylinders its own butterfly, mounted close to the cylinder head, with a short trumpet in front of it. Three things change.

The first is response. With the throttle a few inches from the intake valve, there's almost no trapped volume to fill or empty when the driver moves the pedal. Engine response tracks the pedal almost immediately, which is why race engines from the GTO era onward used individual carburetors or throttles.

The second is tuning. Each cylinder has its own short, straight path to open air, and the length of that path (trumpet plus throttle body plus port) can be chosen to make the pressure waves in the intake arrive at the valve at the right moment. Short runners favor high rpm, which suits an engine the dealer says can run to 8,000. On this car, the throttle trumpets sit inside a sealed box formed against the hood panel, so the engine also breathes cold, filtered air instead of air heated under the hood.

The third is the cost: metering. A shared plenum gives the ECU a smooth, readable airflow signal. Twelve separate throttles don't. At small throttle openings the manifold pressure signal is weak and pulsing, and some intake charge can flow back out of the trumpet, which upsets airflow-based fueling. This is why the build uses a standalone DTAFast ECU. Systems like it typically calculate fuel mainly from throttle angle and rpm, a method called alpha-N, often blended with pressure readings, and fire each injector in sequence with its own cylinder's intake stroke. The 12 butterflies also have to be kept balanced so every cylinder sees the same airflow at idle.

The power gain from the factory 508 hp to the dyno sheet's roughly 601 hp came from the whole package: intake, custom exhaust manifolds, no catalytic converters and a new calibration. The listing doesn't break out how much each piece contributed, and I won't guess.

The detail I'd pay the most attention to as an engineer is the May 2026 throttle body rebuild. On a twelve-throttle engine, worn shafts and drifting synchronization show up as a rough idle and uneven running long before anything breaks, so a recent rebuild, done properly, is worth more than it looks on an invoice.

The short answer is that the 250 GTO is the automotive version of an elegant woman with perfect proportions walking into a room. Sixty-four years later, heads still turn, and Ferrari would very much like to be the only one making the introductions.

The longer answer involves lawyers. Ferrari registered the 250 GTO's body shape as an EU trademark in 2008. Trademarks in the EU come with a condition: use the mark for the goods it covers or lose it after five continuous years.

In 2019, Ferrari won a case in Bologna against Ares Design, a Modena coachbuilder that had planned about ten GTO-inspired cars on modern Ferrari V12 underpinnings at roughly £1 million each. The court treated the 250 GTO as a protected work of art in Italy. Ares then went after the trademark itself. In 2020, the EU Intellectual Property Office's cancellation division revoked the shape mark for vehicles and clothing because Ferrari hadn't used it for either in more than five years. Ferrari kept the mark for toys and scale models, appealed, and filed to trademark the "250 GTO" name for cars, video games, sunglasses and toys. In 2024, an EUIPO appeal board also refused Ferrari's bid to register the shape of the 250 Testa Rossa, finding its features common to vintage cars.

The reason Ferrari keeps paying lawyers is on its income statement. Sponsorship, commercial and brand revenue reached €820 million (about $910 million) in 2025, up 22%, about 11% of the company's €7.1 billion in revenue. Car and spare-parts revenue grew 5%. A historic shape anyone can reproduce is a weaker asset in the fastest-growing part of the business.

For people building and buying re-creations, the economics run through donor cars. The 400i is a logical choice: Ferrari built about 1,300 of them from 1979 to 1985, most with automatic gearboxes, and they have long been among the cheapest V12 Ferraris to buy, with ordinary examples selling from the low $30,000s into the $50,000s. The donor supplies a Ferrari chassis, a Ferrari registration and the legal identity the finished car carries. Today's Auction Desk car is registered in Britain as a 1979 Ferrari, not as a 1962 one.

The engine choice has its own math. Ferrari built 2,056 575Ms, and only 246 had the manual gearbox. Using a 575M engine with a 550's six-speed manual means the build didn't need to consume one of the rare manual cars.

That's a wrap. See you Monday — same inbox, lower gear.

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