The hands
The people behind the car
The people whose work shaped the Aston Martin DB4 GT Zagato.
Ercole Spada
Body designer
Designed the DB4 GT Zagato body at age 23, shortly after joining Zagato in 1960.
DB4 GT Zagato
Newport Pagnell, skinned in Milan
The original DB4 GT Zagato is a 19-car Anglo-Italian competition project. Chassis identity, period competition history and distinction from later Sanction and Continuation cars define the collector file.
Market value · road
$9.5M–$15M
Typical $12M · 0 sales
$8.1M$16M
Market history builds with the record
- Power
- 314 bhp (factory claim)
- Engine
- 3.7L six (twin-plug)
- 0 to 60
- 6.1 s (factory figure)
- Top speed
- 153 mph (246 km/h)
- Weight
- 1'225 kg (factory figure)
- Production
- 19 (original cars)
Market & Price
The price and the proof
A terminal for one car: the model curve over the documented record, the benchmarks it is measured against, and the instruments that read it.
Records: Published auction result for chassis DB4GT/0186/R — $14,300,000 · RM Sotheby's, New York · December 2015; 1 documented road sales on file · 2015–2015. estimate band $9.5M–$15M · good road cars.
HCN:DB4GTZAGLive model
$11'937'336-5.8% · 12M
Model curve · anchored to 1 documented sales · benchmarks rebased at window startmodel v1 · seed astonmartin-db4-gt-zagato · not investment advice
The readouts · model figures against the benchmarksSynthetic model · insufficient ledger
Compound annual growth
| Window | This car* | S&P 500 | Gold |
|---|---|---|---|
| 1Y | -5.8% | +18.8% | +21.9% |
| 5Y | -1.9% | +11.4% | +17.6% |
| 10Y | -1.4% | +13.3% | +11.8% |
*Modeled price CAGR · S&P is a price index, no dividends
Deepest drawdown · model window
This car*-19.1%May 2016 → Apr 2023 · not recovered
S&P 500-20.3%Dec 2021 → Oct 2022 · recovered Dec 2023
Gold-18.9%Feb 2026 → Jul 2026 · not recovered
Forecast ladder · model quantiles
| Horizon | P10 | P50 | P90 |
|---|---|---|---|
| +6M | $11M | $12M | $13M |
| +12M | $11M | $12M | $13M |
| +24M | $10M | $12M | $14M |
Median path with the 10th and 90th percentile · not investment advice
Transaction ledger · documented salesMixed price basis · not estimates
1 of 1 recorded sales · shown in USD · recorded currency in each record
A single headline sale cannot be treated as an index for all 19 cars.
Price range · road · openConfidence · estimateThe band is anchored by the documented $14.3m RM Sotheby's sale of chassis 0186/R in 2015 and the extreme scarcity of public trades. That car had period racing history and a major concours restoration; private transactions and chassis-specific provenance leave a broad range.
Floor
$9.5M
Typical
$12M
Ceiling
$15M
Estimate band for good road cars. 0 documented sales since 2019 plotted below.
$7.8M$9.5M$12M$15M$16M
Hover the spectrum to read a value, or a dot for the sale behind it.
Band, axis and sale positions shown in recorded USD. USD; applies only to original 1960s cars, not Sanction or Continuation examples.
Road record
$14,300,000
Published auction result for chassis DB4GT/0186/R
RM Sotheby's, New York · December 2015
The wider market · Aston Martin at auction · median per year · modeled between anchors1,805 lots · 2003–2026 · exact yearly anchors · modeled line
Instrument calibration for this file is in progress — the terminal above reads the documented record directly.
The public ledger is deliberately sparse because most cars have not appeared with published sale prices in recent years.
Overview
A lighter answer to Ferrari's short-wheelbase GT
Aston Martin showed the DB4 GT Zagato at the October 1960 London Motor Show. Ercole Spada, then 23 and newly arrived at Zagato, drew the compact aluminium two-seater body around the short-wheelbase DB4 GT chassis.
The twin-plug 3.7-litre six used higher compression and a claimed 314 bhp. Competition cars raced in period, including entries for the Essex Racing Stable, but demand stopped the original run at 19 rather than the planned 25.
Aston Martin and Zagato later approved four Sanction II cars completed in 1991 and two Sanction III cars approved in 1992. A separate 19-car Continuation run arrived in 2019. None should be merged with the 1960s originals in a valuation ledger.
- Built
- 19 originals
- Designer
- Ercole Spada
- Body
- Zagato aluminium
- Gearbox
- 4-speed manual
- Launch
- 1960 London Motor Show
Reference
Technical specifications
Powertrain
- Engine
- 3'670 cc DOHC inline-sixalloy, twin-plug, naturally aspirated
- Induction
- Three Weber 45 DCOE carburettors
- Power
- 314 bhp at 6'600 rpmfactory figure; period auction catalogues sometimes quote 6'000 rpm
- Torque
- 240 lb-ft at 5'000 rpmfactory figure
- Transmission
- 4-speed manual
Chassis and body
- Body
- Hand-formed aluminiumbuilt by Zagato in Milan
- Weight
- 1'225 kgfactory figure; four competition lightweights were about 150 lb lighter
- Front suspension
- Independent with coil springstelescopic dampers and anti-roll bar
- Rear suspension
- Live axle with Watts linkagecoil springs
- Brakes
- Four-wheel Girling discs
The records
0
original cars
0bhp
claimed output
0kg
factory weight
HICON BID
Buying interest, silently.
A HICON Bid is a confidential expression of buying interest on the Aston Martin DB4 GT Zagato file — never public, never shown to other members. It is not a binding purchase, and HICONIUM holds no funds.
Sign in
HICON Bids are a member instrument. Sign in to place one.
The vault
Open a file on yours.
You keep one? The record starts in your garage — identity, papers, photography, and the market evidence this file already carries, bound to your chassis.
The value drivers
What moves the price
Two F40s can be indistinguishable in a photograph and a million apart at the hammer: the difference is never in the paint. Build the file below and watch the band move.
Indicative band · the base car
$9.5M–$15M
a good, honest road car — before its file is read
$6.1M$34M
Spans are indicative, drawn from the documented sales cited beside each attribute. The calibrated multipliers — and how they compound for one specific chassis — are member instruments.