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21 of 4,352 chassis match · showing 1–21 · sort: Highest price · Oldest first · Clear filters

1964 Ford GT40 Roadster Prototype (GT/108)
GT/108prototypeUnited Kingdom
289 cu in (approx. 4.7L) V8, Ford Cobra specification
White with matte black nose and hood (at various stages)
Sold US$7,650,000 · RM Sotheby's
1972 Porsche 911 Carrera RS 2.7 pre-production prototype
9113600012prototypeGermany
2.7L flat-six
Signal Yellow
Sold US$1,325,000 · RM Sotheby's
1960 Chevrolet CERV I
P-2152prototypeUnited States
377 cu in (approx. 6.2L) OHV aluminum V8, Hilborn fuel-injected, Alcoa-cast
Estimate US$1,300,000 – US$2,000,000 · RM Sotheby's
1968 Maserati Ghibli Spyder prototype
AM115/S 1001prototypeItaly
4.7L V8 dry-sump, 310 hp, Weber carburetors, with twin-spark-ready cylinder heads
Giallo (yellow)
Sold US$990,000 · RM Sotheby's
1927 Bucciali TAV3 (later TAV8) with Saoutchik Torpedo-Sport 'Cannes' body
TAV8 (See Text)prototypeFrance
Continental inline eight-cylinder, transverse-mounted with front-wheel drive
Sold US$720,000 · RM Sotheby's
1964 Porsche 901 Cabriolet prototype
13360prototypeGermany
2.0L air-cooled flat-six, SOHC, Solex carburettors, 130 bhp
Signal Red
Sold €649,600 (≈ $715K) · RM Sotheby's
1972 Porsche 911 Carrera RS 2.7 development prototype
9112301609prototypeGermany
2.7L flat-six with Bosch mechanical fuel injection, ~210 bhp (prototype unit)
Fluorescent yellow
Estimate US$700,000 – US$900,000 · RM Sotheby's
1933 Marmon HCM
DD609prototypeUnited States
6.0L (368 cu in) overhead-valve aluminum V-12, 151 bhp at 3,700 rpm
Light tan
Sold US$429,000 · RM Sotheby's
1967 Maserati Mexico Frua Prototype (AM112 001)
AM112 001prototypeItaly
4.2L V8 DOHC, four Weber 38 DCNL5 carburetors, ~255 bhp
Amaranto (dark red)
Sold US$346,500 · RM Sotheby's
1975 Porsche 911 Turbo Carrera (Type 930) pre-production prototype
9306800014prototypeGermany
3.0L air-cooled flat-six, single turbo, Bosch K-Jetronic fuel injection, 234 bhp
Oak Green Metallic
Sold US$341,000 · RM Sotheby's
1965 Porsche 911 2.0 Coupé
300474prototypeGermany
1,991cc air-cooled flat-six, single overhead camshaft, 130 bhp
Bali Blue
Sold £265,000 (≈ $331K) · 2023-12-15 · Bonhams
1967 Jaguar E-Type 2+2 'Pirana' by Bertone
1E 50950prototypeUnited Kingdom
4.2L inline-six
Silver
Sold US$324,000 · RM Sotheby's
1969 Porsche 911S Coupé
119301099prototypeGermany
2.2L flat-six, fuel-injected, Type 911/02
Tangerine (code 6809 'Blutorange')
Estimate €250,000 – €350,000 · RM Sotheby's
1970 Iso Grifo GL Series II (IR8)
GL 050336prototypeItaly
Chevrolet 350 cubic inch V8, paired with five-speed ZF gearbox
Polo White
Sold US$264,000 · RM Sotheby's
1963 Maserati Mistral Coupé
AM101 960prototypeItaly
3.5L DOHC inline-six, triple Weber 42DCOE carburettors, 235 bhp
Estimate £195,000 – £235,000 · RM Sotheby's
1963 Mercedes-Benz 230 SL 'Pagoda' W113 development car
113.042.10.000009prototypeGermany
Orange Metallic with black hardtop
Sold €220,000 (≈ $242K) · RM Sotheby's
1974 Abarth SE 027
SE027-001prototypeItaly
1,986cc DOHC 16-valve inline-four with Lucas indirect fuel injection, 280 bhp at 9,000 rpm
Sold £168,000 (≈ $210K) · RM Sotheby's
1936 Pierce-Arrow Twelve Town Car Prototype (Derham coachwork)
3150069prototypeUnited States
7.6L (462 cu in) L-head V12, three-speed manual with overdrive
Dark blue with silver accents
Sold US$187,000 · RM Sotheby's
1938 H.R.G. Airline Coupé (factory one-off prototype coupé)
WT68prototypeUnited Kingdom
1.5L OHV inline-four, 55 bhp, sourced from Triumph Gloria
Sold US$176,000 · RM Sotheby's
1969 Lancia HF Competizione (Ghia-bodied, on Fulvia chassis)
818.540 002279prototypeItaly
1.6L V4
Estimate £140,000 – £180,000 · RM Sotheby's
1969 Adams Brothers M-505 Probe 16
AB/3prototypeUnited Kingdom
1.8L OHV inline-four, JanSpeed-tuned, ~100 bhp at 5,500 rpm
Sold US$165,000 · 2020-08-14 · Bonhams