Supercar Collectible

Display currency

CHF

Platform currency

Market values are normalized for comparison. Original MSRP and sold prices remain preserved in their source currency.

Currency converter

In CHF

CHF 91'940

1 EUR = 0.9194 CHF

ECB reference · AED/USD peg · 2026-10-30

Production verifiedLow production

Porsche · 1975–1977

911 930 Turbo 3.0

Vehicle facts

Built

2,850

Low production

Powertrain

B6

Technical profile in progress

Output

260 PS / 191 kW

Existing catalog value

Verified market value

CHF 186'810

pending

About this car

SCI Collector Score, the collector case, essentials, market & analysis.

SCI Collector Score

SCI-1.5.0
65/100

Balanced · Balanced

SCI scale

Tap a color to explore the scale.

7/10

Current · 7/10 · Positive zone

68

Evidence Confidence

100%

Coverage

Indicative SCIRisk —

SCI 1.5

Collector score.

75%

Collector core

25%

Market

Factor breakdown

Open any factor to see what it means and which evidence supports it.

8 factors
How SCI works

Collector quality and evidence are separate. Structural collector factors carry 75%; observable market factors carry 25%.

Methodology & score history
Research notes

Publication gates

• No coherent sold-price benchmark is available.

• Needs at least 5 comparable sold observations inside the 36-month market window.

• Needs at least two independent source providers in the benchmark window.

Rationale

• Observed benchmark CAGR is +33.7% across the longest suitable 2–6 year comparison window.

• Recent transaction momentum versus the preceding period is +42%.

• Scarcity uses a conservative production base of approximately 2,850 vehicles.

• Collector Evidence G contributes source-backed structural evidence from 6 independent sources; it does not substitute for transaction evidence.

• SCI 1.5 separates structural collectibility from evidence confidence: scarcity, collector significance and future relevance carry 75% of SCI; observable market factors carry 25%. Thin public-market evidence primarily reduces Confidence rather than intrinsic collector quality.

• Uncovered factors retain conservative neutral priors in the score model while their missing support remains visible in factor coverage and Evidence Confidence; they are never presented as equally evidenced facts.

Collector intelligence

Why it matters.

The collector case in a few signals first. Full editorial notes and source detail remain available below.

Collector signal

First-generation 3.0 Turbos are established collector cars

Heritage

RM Sotheby's has repeatedly sold 1975-1977 examples and catalogues first-year, originality, matching numbers and market specification as key attributes.

Rarity

Porsche states that 2,850 examples of the first 911 Turbo generation were built in its first three years.

Technology

3.0-litre turbocharged flat-six, boost-pressure-controlled turbocharging and competition-derived chassis/brake concepts made the 930 a major transfer of racing turbo…

Key checksHigh: auction catalogues repeatedly foreground matching-number engine/gearbox, original paint/interior,…

Technical profile

The essentials.

Engine architecture

B6

Power

260 PS / 191 kW

Cylinders

6

View all specifications
Engine architectureB6
Cylinders6
Power260 PS / 191 kW
Kerb weight1,195 kg

Market

What the market tells us.

A quick read of the strongest published price evidence. Original source currencies stay preserved.

Latest source

Market chart & benchmark

Price history, evidence modes, ranges and benchmark methodology · open by default

Open

Collectible market terminal

CHF 167'246 – CHF 167'246

+33.7% observed CAGR

Porsche 911 930 Turbo 3.0 · model-level research benchmark, not an appraisal of a specific chassis.

Completed sales · 7 · chart-readyAsking market · 1

Raw sales + adaptive trend · historical FX display layer · SCI benchmark gates remain unchanged

7 Sales1 Ask1 GuidesFX normalized

Observed sold-price evidence. Original source currencies remain preserved.

7 trend-eligible sales · 7 historical-FX pointsMove across a sale point to inspect the observation
CHF 266kCHF 221kCHF 176kCHF 131kCHF 86kGuide range · CHF 163,629–CHF 163,629Apr 08, 2020Aug 27, 2026
SaleAskMedian trendLaunch MSRP

Raw sales remain individual evidence points. The filled line is an adaptive median market story visually anchored to launch MSRP on MAX; launch is not included in the median, SCI score or benchmark eligibility.

SCI Research Tools

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Vehicle gallery

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Market intelligence

At a glance.

How to read this

Only qualified SCC evidence is shown. Missing evidence stays blank.

Price distribution · USD

Asks, guides & verified sales.

9 observations

Guide range is context, not a completed sale.

Asks
Sales
Guides
$110,000$304,290

Value since MSRP

Qualified change

SCI factor profile

Score & evidence.

SCI 65

Methodology details

SCI and evidence confidence remain separate measures. Missing evidence is never presented as equal precision.

Market signals

Market Radar.

0/4 signals published
Liquidity: 26 · provisional · 36% confidence · click for evidenceSupply pressure: 28 · provisional · 6% confidence · click for evidenceMarket depth: 10 · provisional · 39% confidence · click for evidencePrice momentumLiquiditySupply pressureMarket depth

Mileage impact

Mileage & value.

Pending · 40% confidence

Reference sale value

$175,968

4 qualified sales with exact mileage

Reference mileage

90,123 km

Exact sale evidence

Curve status

Research

More comparable sales needed

Upper-bound mileage stays qualified; asking values do not enter the sale-based curve.

Global Registry

Publicly observed.

Source-backed historical observations, deduplicated into known identities where evidence is strong enough. This is provenance research, not live tracking.

Public source geography

One map · filter registry, sightings and listings

Full distribution →

Public aggregates and attributed historical reports · historical evidence, not live tracking

Historical evidence · not live
3/3 mapped
Loading evidence map

Selected country

United States

North America · privacy-safe aggregate

3/ 3

identified here

2

recent evidence

100%

mapped share

public country cellno evidence in layer
Natural Earth basemap.

Research depth

Sources & methodology.

Professional research stays complete, but it no longer competes with the first-read vehicle story.

Price evidence ledger

MSRP, sold, asking and guide evidence with original currencies

Price evidence

Evidence ledger.

Launch MSRP, realized sales, public asking inventory, valuation guides and reported one-off commission estimates stay separate. Auction venue, mileage, model year and specification context are exposed where sources publish them. Source currencies are preserved and estimates are never relabelled as MSRP, transactions or current market value.

Manufacturer / launch MSRP

Original published launch pricing. Net/gross basis is preserved where the source states it.

1 record

Market guides

Supporting valuation evidence; lower-weighted than direct completed sales and kept separate from live asks.

1 record

Collector research notes

Full narrative, value drivers and risk factors

First-generation 3.0 Turbos are established collector cars; RM Sotheby's has repeatedly sold 1975-1977 examples and catalogues first-year, originality, matching numbers and market specification as key attributes.

Potential value drivers

  • • Porsche states that 2,850 examples of the first 911 Turbo generation were built in its first three years.
  • • Originally conceived as a small run
  • • Porsche states an initial 500-unit plan linked to homologation, but demand led to continued series production. It therefore should not be treated as a fixed 500-car limited edition.
  • • Porsche describes the 3.0-litre 911 Turbo as the global flagship of the 911 range and the foundation of the long-running Turbo model family.
  • • 3.0-litre turbocharged flat-six, boost-pressure-controlled turbocharging and competition-derived chassis/brake concepts made the 930 a major transfer of racing turbo technology into a road 911.
  • • The 930 established 'Turbo' as a permanent Porsche performance lineage and materially changed the performance positioning of the road-going 911.

Risk factors

  • • High: auction catalogues repeatedly foreground matching-number engine/gearbox, original paint/interior, Porsche certificates, mileage and documented ownership. · Variant/year miscoding, loss of original drivetrain/body specification, undocumented restoration and weak ownership documentation reduce comparability. First-year and market-specific cars must be kept distinct.

Research status & production source

Verification, research tier, methodology and factory source

Research status

Static profile

Editorial review in progress

Production facts

Source verified

SCI methodology

Research · confidence 68/100

Research tier: P1 · Verified production research

Last static verification: 2026-08-31T00:00:00+00:00

Production source

2,850

Porsche states that 2,850 examples of the first 911 Turbo generation were built in its first three years.

Open manufacturer source