---
title: Bizzarrini 5300 GT Strada · HICONIUM
description: "Giotto Bizzarrini turned the Iso A3/C into his own road car, with a Corvette 327 behind the front axle. Factory history cites 133 across all 5300 GT versions; auction catalogues identify 86 alloy-bodied Stradas."
canonical_url: https://hiconium.dev/vehicles/bizzarrini/5300-gt-strada
image: https://hiconium.dev/og/vehicle/bizzarrini/5300-gt-strada.png
---

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> Path: [Home](https://hiconium.dev/) › [Vehicles](https://hiconium.dev/models) › [Bizzarrini](https://hiconium.dev/manufacturers/bizzarrini) › 5300 GT Strada
> On this page: [The price and the proof](#the-price-and-the-proof) · [Model readouts](#model-readouts) · [Documented sales](#documented-sales) · [Iso origins, then a name of its own.](#overview-heading) · [Technical specifications](#technical-specifications) · [Powertrain](#powertrain) · [Chassis](#chassis) · [Performance and production](#performance-and-production) · [5300 GT Strada register](#5300-gt-strada-register) · [The people behind the car](#the-people-behind-the-car) · [Giotto Bizzarrini](#giotto-bizzarrini) · [Giorgetto Giugiaro](#giorgetto-giugiaro) · [Piero Drogo](#piero-drogo) · [Member instruments](#member-instruments)

![A red Bizzarrini 5300 GT Strada, front three-quarter view on an amber field with raking light](https://hiconium.dev/images/cars/bizzarrini-5300-gt-strada/hero-wide-2560.jpg)

# 5300 GT Strada

Chevrolet power, Livorno chassis

Giotto Bizzarrini turned the Iso A3/C into his own road car, with a Corvette 327 behind the front axle. Factory history cites 133 across all 5300 GT versions; auction catalogues identify 86 alloy-bodied Stradas.

1965 to 1968 · 86 alloy Stradas · Livorno

## The price and the proof

Indicative road-car band $750K–$1.2M · typical $950K · 7 documented road sales · 7 recorded sales on file. Modeled values are not observed sales. Nothing here is investment advice.

Confidence: medium. Six documented USD auction sales from 2009 to 2023 anchor the band, with a 2024 RM Sotheby's sale at €736'250 as a cross-check rather than an FX-converted ledger entry. Alloy-body authenticity, chassis history, original specification and restoration quality can move an individual car outside it.

Indicative band for documented, alloy-bodied road cars. Iso A3/C racers, Corsa cars, Spyders, America variants, recreations and modern Revival cars are separate comparables.

Public results rose from the low-$400'000s in 2009 to $1'010'800 in 2015, then settled between $775'000 and $915'250 in the two latest documented USD sales. The thin market makes individual history more important than a smooth trend line.

| Record | Amount | What | Venue | Date |
| --- | --- | --- | --- | --- |
| Road record | $1'010'800 | 1968 Strada | Keno Brothers Rolling Sculpture, New York | Nov 2015 |
| Road record | $915'250 | 1968 Strada Alloy · IA3 0323 | RM Sotheby's Monterey | 18 Aug 2023 |

Valuation method and source rules: [HICONIUM standards](https://hiconium.dev/standards). Observed auction results across the wider market: [Market terminal](https://hiconium.dev/market).

### Model readouts

7 documented anchors. model v1 · seed bizzarrini-5300-gt-strada. Compound annual growth is modeled price CAGR; S&P 500 is a price index without dividends. Forecast quantiles are not investment advice.

| Window | This car* | S&P 500 | Gold |
| --- | --- | --- | --- |
| 1Y | +5.9% | +18.8% | +21.9% |
| 5Y | +5.7% | +11.4% | +17.6% |
| 10Y | +0.8% | +13.3% | +11.8% |

| Series | Deepest drawdown | Window |
| --- | --- | --- |
| This car* | -49.3% | Feb 2015 → Mar 2020 · not recovered |
| S&P 500 | -20.3% | Dec 2021 → Oct 2022 · recovered Dec 2023 |
| Gold | -38.4% | Oct 2012 → Dec 2015 · recovered Jul 2020 |

| Horizon | P10 | P50 | P90 |
| --- | --- | --- | --- |
| +6M | $875'909 | $968'295 | $1'070'424 |
| +12M | $867'155 | $986'941 | $1'123'275 |
| +24M | $856'572 | $1'025'319 | $1'227'310 |

### Documented sales

7 recorded. Every public sale on this file, newest first. Amounts keep the recorded currency. Source links appear only when the catalog stores a public auction-lot URL.

| Date | Chassis / label | Class | House | Venue | Amount | Currency | Basis | Source |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2024-05-11 | 5300 | Road | RM Sotheby's | Monaco | €736'250 | EUR | incl. buyer's premium | [https://rmsothebys.com/en/auctions/mc24/monaco/lots/r0091-1967-bizzarrini-5300-gt-strada-alloy/1472492](https://rmsothebys.com/en/auctions/mc24/monaco/lots/r0091-1967-bizzarrini-5300-gt-strada-alloy/1472492) |
| 2023-08-19 | 5300 | Road | RM Sotheby's | Monterey, USA | $915'250 | USD | incl. buyer's premium | [https://rmsothebys.com/en/auctions/mo23/monterey/lots/r0170-1968-bizzarrini-5300-gt-strada-alloy/1374389](https://rmsothebys.com/en/auctions/mo23/monterey/lots/r0170-1968-bizzarrini-5300-gt-strada-alloy/1374389) |
| 2022-03-04 | 2022 | Road | gooding | Amelia Island Auction 2022 | $775'000 | USD | incl. buyer's premium | [https://www.goodingco.com/lot/1968-bizzarrini-5300-gt-strada](https://www.goodingco.com/lot/1968-bizzarrini-5300-gt-strada) |
| 2021-11-19 | 5300 | Road | RM Sotheby's | The Guikas Collection, Circuit Paul Ricard, France | €680'000 | EUR | incl. buyer's premium | [https://rmsothebys.com/en/auctions/jg21/the-guikas-collection/lots/r0011-1968-bizzarrini-5300-gt-strada/1074442](https://rmsothebys.com/en/auctions/jg21/the-guikas-collection/lots/r0011-1968-bizzarrini-5300-gt-strada/1074442) |
| 2017-02-10 | 2017 | Road | Artcurial | Rétromobile 2017, Paris, France | €705'600 | EUR | incl. buyer's premium | [https://glenmarch.com/auction-cars/show-backup-image/24470/results](https://glenmarch.com/auction-cars/show-backup-image/24470/results) |
| 2015-02-06 | 2015 | Road | Artcurial | Rétromobile 2015, Paris, France | €1'244'400 | EUR | incl. buyer's premium | [https://glenmarch.com/auction-cars/show-backup-image/9756/results](https://glenmarch.com/auction-cars/show-backup-image/9756/results) |
| 2013-08-17 | 5300 | Road | RM Sotheby's | Monterey, USA | $693'000 | USD | incl. buyer's premium | [https://www.rmsothebys.com/en/auctions/MO13/Monterey/lots/r175-1965-bizzarrini-5300-gt-strada-alloy/293854](https://www.rmsothebys.com/en/auctions/MO13/Monterey/lots/r175-1965-bizzarrini-5300-gt-strada-alloy/293854) |

Amounts are reported sale prices in USD. No currency conversion is applied; buyer-premium semantics are stated only where the source states them.

## Iso origins, then a name of its own.

Iso showed two Giugiaro-designed Grifos at Turin in 1963. The A3/L was the road car; Bizzarrini's Livorno consultancy built the lower A3/C for competition, placing Chevrolet's 327 V8 behind the front axle in a fabricated platform chassis.

Bizzarrini and Iso separated in 1965. The engineer continued the A3/C idea under his own name as the 5300 GT Strada for the road and Corsa for competition. Current Bizzarrini material credits Giorgetto Giugiaro with the form and Piero Drogo with refinements.

Production ended with the company's collapse in 1968. The surviving record is untidy: Bizzarrini currently cites some 133 cars across Strada, America and Corsa, FIA research cites 124 at closure, and auction houses commonly identify 86 alloy Stradas. Unfinished chassis, later assembly and reconstructed cars make expert inspection part of the asset.

| Highlight | Detail |
| --- | --- |
| The engine sits behind the axle | The Chevrolet small-block is pushed behind the front axle rather than hung over it. The result is a front-mid-engine car with near-even weight distribution, not an Italian body wrapped around a conventional American drivetrain. Iso history records that the engine moved roughly 40 centimetres rearward; a hatch in the dashboard gave access to the distributor. The layout dictates the long nose and puts the heaviest component inside the wheelbase. |
| Every chassis needs its own file | Alloy or glassfibre, De Dion or independent rear suspension, Dunlop or Campagnolo brakes: specification changed during a short, financially unstable production run. The strongest cars come with factory paperwork, period photographs and a report from a recognised marque specialist. A generic model description cannot settle identity, body material or original configuration on an individual 5300 GT. |
| A road car from the A3/C | The Strada came from the Iso Grifo A3/C programme, whose competition cars won their GT class at Le Mans in 1964 and 1965. Bizzarrini kept the low body, the rear-set V8 and the semi-monocoque construction when the car took his name. The 1965 class-winning Corsa is not a Strada sale comparable. It is the engineering parent: the distinction matters when a competition history, conversion or continuation car enters the market. |

| Label | Value |
| --- | --- |
| Power | 350 SAE bhp |
| 5300 GT production | 133 across all versions |
| Alloy Stradas | 86 |
| Designer | Giorgetto Giugiaro |
| Built in | Livorno |

## Technical specifications

### Powertrain

| Label | Value | Note |
| --- | --- | --- |
| Engine | Chevrolet Corvette 327 V8 | 5'354 cc in the factory brochure, cast-iron, naturally aspirated OHV |
| Factory output | 350 SAE bhp at 5'400 rpm | standard brochure tune; four Weber carburettors raised the claim to 420 SAE bhp |
| Carburation | Single four-barrel Holley or four Weber 45 DCOE 12 | standard and optional factory specifications; surviving cars vary |
| Transmission | 4-speed manual | Borg-Warner T10 and Muncie units are documented |
| Drive | Rear-wheel drive |  |

### Chassis

| Label | Value | Note |
| --- | --- | --- |
| Structure | Fabricated steel platform, semi-monocoque body | alloy skins riveted to the frame on early cars |
| Front suspension | Independent unequal wishbones | coil springs, telescopic dampers, anti-roll bar |
| Rear suspension | De Dion axle | some related 5300 GT variants used independent rear suspension |
| Brakes | Four-wheel solid discs | Dunlop or Campagnolo hardware depending on chassis |
| Wheelbase | 2'450 mm |  |
| Body | Aluminium on the documented Strada set | glassfibre appears on related America and IRS cars |

### Performance and production

| Label | Value | Note |
| --- | --- | --- |
| Top speed | 249–275 km/h | factory brochure claim, dependent on final-drive ratio; RM catalogues cite up to 290 km/h, while a period Quattroruote test recorded 259 km/h on chassis 0234 |
| Weight | 1'250 kg | factory DIN unladen figure; competition specifications vary |
| 5300 GT total | Some 133 | current Bizzarrini history, covering Strada, America and Corsa |
| Alloy-bodied Stradas | 86 | figure used by Gooding and RM Sotheby's |
| Count caveat | No single accepted total | FIA research says 124 cars at the September 1968 closure; older auction research ranges from 100 to 149 when Iso A3/C and other 5300 GT variants are included |

### 5300 GT Strada register

3 documented · public records only. Private, unpublished and member-only chassis files are omitted.

| Year | Chassis | Colour | Provenance | Last public sale | File |
| --- | --- | --- | --- | --- | --- |
| 1968 | IA3 0309 |  | Published auction record from RM Sotheby's, 2021-11-19. | €680'000 · RM Sotheby's · 2021-11 | [Chassis file](https://hiconium.dev/vehicles/bizzarrini/5300-gt-strada?file=IA3%200309) |
| 1967 | IA3 0264 |  | Published auction record from RM Sotheby's, 2024-05-11. | €736'250 · RM Sotheby's · 2024-05 | [Chassis file](https://hiconium.dev/vehicles/bizzarrini/5300-gt-strada?file=IA3%200264) |
| 1965 | IA3 0234 |  | Published auction record from RM Sotheby's, 2013-08-17. | $693'000 · RM Sotheby's · 2013-08 | [Chassis file](https://hiconium.dev/vehicles/bizzarrini/5300-gt-strada?file=IA3%200234) |

## The people behind the car

### [Giotto Bizzarrini](https://hiconium.dev/people/giotto-bizzarrini)

Founder and chief engineer · Bizzarrini

![Portrait of Giotto Bizzarrini](https://hiconium.dev/images/cars/bizzarrini-5300-gt-strada/people/giotto-bizzarrini.jpg)

Developed the Iso Grifo A3/C, carried its front-mid-engine layout into the 5300 GT and built the car in Livorno under his own name after the split from Iso.

Chassis architecture and competition development are the car's primary provenance.

### [Giorgetto Giugiaro](https://hiconium.dev/people/giorgetto-giugiaro)

Body designer · Bertone

![Portrait of Giorgetto Giugiaro](https://hiconium.dev/images/cars/bizzarrini-5300-gt-strada/people/giorgetto-giugiaro.jpg)

Drew the low Grifo A3/C form that became the 5300 GT while working at Bertone.

The nose, roofline and cut-off tail remained legible through changing coachbuilders and specifications.

### [Piero Drogo](https://hiconium.dev/people/piero-drogo)

Body development · Carrozzeria Sports Cars

Refined the A3/C-derived body and built early riveted aluminium shells in Modena.

Drogo-built details and period body evidence materially affect how an early car is judged.

## Member instruments

A HICON Bid is a confidential expression of buying interest on this file. It is not a binding purchase, and HICONIUM holds no funds. [Sign in](https://hiconium.dev/sign-in) to place one. Garage files for an owned chassis are member records and are not listed here. [How membership works](https://hiconium.dev/membership).