Vittorio Jano's monoposto Tipo B (P3) — the world's first true single-seater Grand Prix car.
The Tipo B, universally known as the P3, was Vittorio Jano's 1932 monoposto Grand Prix car — the first true single-seater Grand Prix design, with a 2,654cc twin-supercharged straight-eight that grew to 3.2 litres in 1934 and 3.8 litres in 1935 (Tazio Nuvolari famously won the 1935 German Grand Prix in a P3 against the dominant German Silver Arrows). Approximately 13 cars were built and a substantial proportion survive in active competition or museum use.
The car that established the modern single-seater Grand Prix template; Nuvolari's 1935 Nürburgring victory is one of motor racing's greatest stories.
| Variant | Years | Production | Notes |
|---|---|---|---|
| Tipo B 2.6 | 1932 | — | Original 2,654cc twin-supercharged eight. |
| Tipo B 3.2 / 3.8 | 1934–1935 | — | Enlarged engine; Nuvolari Nürburgring 1935. |
For pre-war and vintage cars such as the Alfa Romeo Tipo B (P3), provenance is paramount. Chassis and engine number matching, period coachbuilder records, factory build sheets where available, continuous ownership documentation, original handbooks and any competition or concours history are the foundation of value. Period race history, Alfa Romeo Centro Storico documentation, continuous identity.
Supercharged Jano straight-eight; rebuild work is at the specialist apex. A pre-purchase inspection by a recognised marque specialist should include compression and leak-down testing, magneto and ignition checks, chassis straightness and frame survey, axle and steering wear assessment, brake system review (mechanical or hydraulic per period), and an extended road test on varied terrain to expose carburation, cooling and gearbox issues that only emerge under sustained running.
Pre-war coachwork is rarely truly original after a century of use. Establish whether the body is original to the chassis (period photographs, build records, coachbuilder plates), whether it has been re-bodied at any point, and the standard of any restoration. Quality of timber framing, ash health, panel beating and paint depth are all critical. Concealed structural rot, re-bodies presented as original, and 'tribute' cars built on later or unrelated chassis must be priced accordingly.
Verified original chassis with continuous race history; reconstructed cars exist and are not equivalent. For vintage cars, event eligibility — Mille Miglia, Goodwood Revival, Pebble Beach, VSCC events, Le Mans Classic — can underwrite a substantial proportion of market value. Verify FIA/FIVA papers, period race history where claimed, and the car's standing with the relevant marque registry before purchase.
Regional ranges authored independently — each reflects its local market, not an FX conversion
Vintage cars require disciplined preventive maintenance: lubrication regimes, magneto service, carburettor synchronisation, brake adjustment, and timber and trim conservation. A car used regularly and serviced annually by a specialist will outlast a stored example neglected for decades.
Tiny global specialist community. Confirm the availability of marque specialists, period-correct fasteners, coachwork trim, instruments and tyres before committing. A car requiring fabricated one-off parts will absorb time and cost that a similar example with active specialist support will not.
Each region quoted in its local currency — independent market readings, not FX conversions
Almost entirely a private market; surviving cars are essentially permanent assets.
| Date | Auction | Car | Mileage | Result |
|---|---|---|---|---|
| 2024-01-01 | Private — | 1935 Tipo B P3 | — | Not disclosed Sold |
Foundational Grand Prix engineering; finite production; permanent demand.
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