
Ferrari 365 GT4 BB History
1973-1976 | 387 Built | The First Mid-Engine 12-Cylinder Ferrari

By John Castrogiovanni, Founder of 365Ferrari, the official registry for Ferrari 365 series.
The Ferrari 365 GT4 BB is the car that ended one era of the 365 series and started another for Ferrari itself. Unveiled on the Pininfarina stand at the 1971 Turin Show and produced from 1973 through 1976, it was the first road-going Ferrari with a mid-mounted flat-twelve engine, the successor to the 365 GTB/4 Daytona, and the opening chapter of the Berlinetta Boxer line that ran until the Testarossa replaced it in 1984.
Three hundred eighty-seven examples were built, with serial numbers running from SN17185 through SN19323. Designed by Leonardo Fioravanti at Pininfarina, the same hand behind the Daytona, the BB was low, streamlined, and radically different from every series-production Ferrari before it.
It was also the car Enzo Ferrari resisted building for more than a decade. That resistance, and what finally overcame it, is the story of this car.
Join 365Ferrari Membership – $125/Year | Explore the Registry | Learn More
Ferrari 365 GT4 BB quick facts
- Production: 387 examples (1973-1976)
- Serial Range: SN17185-SN19323
- Debut: Turin Show, October 1971 (Pininfarina stand); production began 1973
- Engine: 4.4L flat-twelve, DOHC per bank, 380 hp
- Layout: Mid-engine, gearbox mounted beneath the engine
- Designer: Leonardo Fioravanti, Pininfarina
- Standard Equipment: Air conditioning, radio, electric windows
- Predecessor: 365 GTB/4 Daytona (built alongside it for several months)
- Successors: BB 512 (1976), BB 512i (1981), Testarossa (1984)
View our Complete Ferrari 365 Model Lineup: All 9 Variants
Learn more about the 365Ferrari community
- Follow the community: Follow @365ferrari on Instagram and 365Ferrari on Facebook to see ongoing documentation of Ferrari 365 cars, historical context, events, and owner activity.
- Join the Ferrari membership: 365Ferrari Membership provides access to the full registry, owner network, marketplace visibility, and documentation resources. One membership tier. Full access. $125 per year.
- Submit your Ferrari to the registry: If you own a Ferrari 365 GT4 BB, submitting your car allows it to be documented, verified, and preserved within the registry. This process supports long-term provenance and historical accuracy.
The Ferrari 365 GT4 BB registry includes verified chassis records, historical documentation, and ownership-level research maintained for accuracy and discretion.
The rest of the content on this page is restricted to members that provides public historical context. Detailed registry records, documentation references, and navigation tools are available through 365Ferrari membership.
Explore 365Ferrari Membership
Verified documentation. Trusted provenance. Shared knowledge.