Collector signal
First-generation 3.0 Turbos are established collector cars
SCI-1.5.0 is liveCollector significance, independently evidenced.
What changed →Porsche · 1975–1977
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 185'917
pending
About this car
SCI Collector Score
SCI-1.5.0Balanced · Balanced
SCI scale
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7/10
68
Evidence Confidence
100%
Coverage
SCI 1.5
75%
Collector core
25%
Market
Factor breakdown
Open any factor to see what it means and which evidence supports it.
Collector quality and evidence are separate. Structural collector factors carry 75%; observable market factors carry 25%.
Methodology & score historyPublication 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
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…
Technical profile
Engine architecture
B6
Power
260 PS / 191 kW
Cylinders
6
Market
A quick read of the strongest published price evidence. Original source currencies stay preserved.
Verified market value
CHF 185'917
pending
Launch MSRP
DEM 65'800
Germany · 1975
Market confidence
68/100
Moderate
Evidence activity
7 sold
1 asking · 1 source
Market chart & benchmark
Price history, evidence modes, ranges and benchmark methodology · open by default
Collectible market terminal
Porsche 911 930 Turbo 3.0 · model-level research benchmark, not an appraisal of a specific chassis.
Raw sales + adaptive trend · historical FX display layer · SCI benchmark gates remain unchanged
Observed sold-price evidence. Original source currencies remain preserved.
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
Sell on Supercar Collectible
Turn the SCC record into a research-backed listing for the next collector.
Market intelligence
Only qualified SCC evidence is shown. Missing evidence stays blank.
Price distribution pending.
Value since MSRP
Launch · 1975
DEM 65,800
Current research
$227,000
1 approved guide sources · original currencies preserved
Qualified change
Not comparable
SCI factor profile
SCI evidence pending.
Market signals
Mileage impact
No mileage-tagged market evidence yet.
Global Registry
3
Identities
0
Verified
0.1%
Coverage
0
Mapped
Registry coverage
3 in review0.1%
research
0.0%
verified
Identity, verification and location are separate. Historical observations do not prove a current location.
Geography
privacy threshold · 3+No verified public geography yet.
Transaction tape
Research depth
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
Launch MSRP, realized sales, public asking inventory and valuation guides stay separate. Auction venue, mileage, model year and listing specification are exposed where the source publishes them. Source currencies are preserved and never relabelled as transaction prices.
Manufacturer / launch MSRP
Original published launch pricing. Net/gross basis is preserved where the source states it.
Completed sales
Published realized transactions only. Auction, venue, mileage and specification context remain visible; unsold bids never enter this group.
1976 · United States · 70,000 mi · Bring a Trailer · Online Auction · HAMMER
1976 · United States · 312 mi · Bring a Trailer · Online Auction · HAMMER
1976 · United States · 42,000 mi · Bring a Trailer · Online Auction · HAMMER
1976 · Canada · 71,000 mi · Bring a Trailer · Online Auction · HAMMER
1976 · United States · Bring a Trailer · Online Auction · HAMMER
1975 · RM Sotheby's · Monterey · PUBLISHED SOLD RESULT
1975 Porsche 911 Turbo Carrera, Type 930, 3.0-liter
1976 · United States · Bring a Trailer · Online Auction · HAMMER
Current asking inventory
Public dealer and marketplace asking evidence as last verified. An asking price is inventory evidence, not a completed transaction.
Market guides
Supporting valuation evidence; lower-weighted than direct completed sales and kept separate from live asks.
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
Risk factors
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 sourceContinue research
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