
Overview
Distinctions
The defining attributes and collector status that make this car garage-worthy.
Collectibility scorecard
Rated 1 to 10 on the traits that matter for owning, driving, and holding on to a car like this.
Market data
Demand tier, price trend, and typical values by condition. Our own assessment, not a quoted valuation.
Values as of July 2026.
Buyer's guide
What anyone seriously considering this car should know first.
The Story
Driving character
Design
Motorsport pedigree
In culture
Rivals
Cars from other manufacturers that competed for the same buyers when new.

Alfa Romeo P2

Delage 15-S-8
Owning One
Why collectors want it
Which one to look for
The debut Grand Prix design and the version every later variant modified: unsupercharged 1,991cc straight-eight, five-bearing crankshaft, cast-aluminium wheels and the hollow front axle. The purest expression of the car as Ettore Bugatti first built it.
The cost-reduced, road-biased version, nicknamed "Tecla" by the public after a maker of imitation jewellery. Simplified plain crank bearings, smaller valves and coil ignition in place of the magneto, usually delivered on wire wheels rather than cast alloy.
The final and most powerful factory variant, combining the 2,262cc long-stroke block with the Roots supercharger. A 35B driven by William Grover-Williams won the inaugural 1929 Monaco Grand Prix.
The first supercharged Type 35, adding a Roots-type blower to the original 1,991cc block. Won on its competition debut and remained the more dependable of the two supercharged variants through the late 1920s.
Built specifically for the 1926 Targa Florio. Unsupercharged like the original 35 but enlarged to a 2,262cc long-stroke block to make up for the power lost by staying under the 2-litre Grand Prix supercharger-class limit.

