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Price opinion from advertisements and recorded sales. Not an inspection or a certified valuation.
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Reference photograph of a Holden Monaro GTS 350
Valuation · Holden · HG · 1970-71

Holden Monaro GTS 350

5.7L Chevrolet 350 V8 · 224 kW / 515 Nm · 4sp manual · RWD
CONSIDERRated within the over $100k band · 42 of 104 at this money
Model value
$140,000
Must gain each year to break even
+6.6%
The projection does not clear it, and nor does most of the library.
CarQuant score
64/100
Scored against the over $100k band, not the whole library
Evidence grade
Thin
One to three recorded Australian sales
$140,000
$112,188 lowhigh $236,209
Calibrated to a thin record
One Australian sale, $142,000 at Donington in August 2026
Measured across this library, a value resting on a single Australian result runs high about six times in ten, by a median of five per cent.

Looking at a Monaro for sale?

Put in the asking price and the odometer reading. You will see what this model should make at that reading.

Should make, typical example
$140,000
At about 45,000 km. Enter an asking price to compare.

Odometer only. Colour, options, history, condition and the photographs move it further, and that is what the report reads.

A person reads the advertisement and its photographs. Usually back within 48 hours. Read a real listing report

Price history

Today $140,000 · modelled median at five years $161,176
Solid line: the value this library has carriedDashed from 2026: modelled · even money $135,408 to $200,643
The green band is the even-money range and the one to plan on: half of outcomes land inside it. The pale band behind it bounds eight in ten ($112,188 to $236,209). The path is this model's own: it starts along the momentum of its recorded history and bends toward its projected median as the horizon lengthens, so no two cars share a future curve.

The verdict

A defensible case with reservations. Scores 64/100, ranking 42 of 104 in the over $100k band. Scarcity is the strongest input, liquidity the weakest.
Running it costs about $8,400 a year (6.0% of value), which is what the economics score measures. All in, including the projected value change, it is $6,005 a year.
The model's five year median is $161,176, a +15.1% move, with the tenth percentile at $112,188.
Value calibrated to a thin record. Treat the level as provisional.
Evidence
Thin1 recorded sale
Off its peak
-3%
Value band
wide
At least one recorded transaction plus a source. Direction is sound, the exact level less so.
Scored against every recent Australian sale this library holds, half its values land within 11.2 per cent of the price paid and the rest miss by more, in either direction. Projections are therefore damped toward flat in proportion to how little is known, and the plausible band is never narrower than the error the model is known to make.
Short term (1-5 years)$6,005 a year all in, +15.1% median value move
Long term (10-15 years)Scarcity case already formed
Negotiate from$140,000

Recorded sales

Every recorded observation, and when
1 row on record
Every row, with its price and note (1) ↓
Aug 2026Donington Auctions$142,000Sold
1970 HG Monaro 350 GTS coupe. The only Australian result on record for the HG 350
1 completed Australian sale of 1 rows. Rows marked asking, no sale, or context are shown for honesty but do not count toward the evidence grade: an ask is not a transaction, a pass-in is a refusal, and a provenance or overseas result does not price the ordinary local car. The badge on every row is computed by the same rule as the grade, so the two cannot drift apart.

Score breakdown

Against the over $100k band median
104 cars in band · ink tick marks the median
Ownership economics30% of total
68/100-1
Scarcity25% of total
92/100+27
Demand durability20% of total
70/100-8
Liquidity15% of total
24/100-8
Risk resilience10% of total
30/100-4
Sub-scores run 0-100 before weighting; the weighted total is 64/100. Medians are computed live from the 104 cars currently in the over $100k band, so this picture moves when the library does.
The working behind each factor: baseline and drivers ↓
Ownership economics30% weight
68/100
Baseline78 pts
− 6.0% of value a year to run-10 pts
Sub-score (baseline plus drivers, clamped 0-100)68 pts
Scarcity25% weight
92/100
Baseline70 pts
+ Roughly 1,200 HG GTS 350s built, an estimated 400 surviving+16 pts
+ The last of the Chevrolet-engined Monaros before the HQ+6 pts
Sub-score (baseline plus drivers, clamped 0-100)92 pts
Demand durability20% weight
70/100
Baseline58 pts
+ The Monaro coupe shape is among the most recognised in Australian motoring+18 pts
− Lacks the Bathurst wins that carry the HK and HT 327-6 pts
Sub-score (baseline plus drivers, clamped 0-100)70 pts
Liquidity15% weight
24/100
Baseline12 pts
+ Monaro coupes appear at Australian muscle auctions regularly+10 pts
+ 74 days on market+2 pts
Sub-score (baseline plus drivers, clamped 0-100)24 pts
Risk resilience10% weight
30/100
Baseline40 pts
− Rust in the coupe body and 350 engine originality are the main risks-10 pts
Sub-score (baseline plus drivers, clamped 0-100)30 pts
Model output, not advice or a valuation. Verify independently before acting.

What it costs to own · about 2,500 km a year

Annual cost of access, excl. fuel
$8,400a year
Share of value per year
6.0%
Scheduled servicing$2,40029%
Tyres, annualised$1,20014%
Registration and CTP$80010%
Insurance$2,10025%
Sinking fund (failure table)$1,90023%
All-in annualised (a different number)
Purchase (model value plus duty)$145,600
Running costs × 5 years$42,000
Median exit, net of selling cost$157,576
All-in annualised over 5 years$6,005/yr
Share of value per year4.3%
Cost of access is what the car costs to run. All-in annualised adds depreciation, duty and selling costs across a five year hold. They answer different questions and are labelled separately for that reason.
Break-even appreciation, 5 year hold
6.6%a year, only to get the money back
This library projects
+2.9%a year
The projection falls 3.7 points a year short of the hurdle. On these assumptions this car is a cost, not an asset, which can be an entirely rational thing to buy but should be bought knowing it.
Purchase$140,000
Stamp duty$5,600
Running costs x 5 years$42,000
Selling cost at exit, 2.6% of the salescales with price
Sale price needed at +5 years$192,551
Storage
Bought at
No forecast is used to compute the hurdle. It is the purchase, the duty, any premium and 5 years of running cost, grossed up for the cost of selling and spread back over the hold. The projection it is measured against is the weakest number in this product and is drawn that way in the chart above. Transport, finance and any restoration spend sit outside it.

Specification

Engine5.7L Chevrolet 350 V8
Power / torque224 kW / 515 Nm
0-100 km/h7 s
Transmission4sp manual
DriveRWD
Kerb weight1,360 kg
Built worldwide1,200
Delivered to Australia1,200
Effective AU survivors400
Australian sales / year7
Typical days on market74 days
Launch price$4,200

What moves the price on this model

Colour hierarchy
Indy Orange+6%
Silver Mink+3%
Verdoro Green+2%
Options
Matching numbers 350+15%
M21 four-speed+8%
Odometer sensitivity±3.1% per 10,000 km vs 45,000 km
Applied on top of these

Condition, history, originality, ownership, delivery and modification multipliers apply to every car in the library. They are applied automatically when an advertisement is analysed, and the schedule is set out once, on the analyser page.

Projected value in five years

Projected value at five years
$161,176
+15.1% on today
The model's figure. Today it is $140,000.
Even odds it lands between $135,408 and $200,643.
$112,188 lowhigh $236,209
The shaded range is even money and 48% wide; the outer figures bound eight outcomes in ten. Band width follows the evidence - a model with a tight measured record carries a tight band.
A stronger five year outlook than 72% of the library.
-26.6% weakest projected move in the librarystrongest +73.1%
Five-year cost of ownership
Value change alone: +$21,176 across five years.
Running costs over the same period: $42,000.
Duty and expected selling costs: $9,200.
Net cost of five years of ownership: $30,025, or $6,005 a year.
The projected value rise offsets part of the running cost. It does not make the car free to own.

The case for and against

The case for

The most powerful of the first-generation Monaros, with the Chevrolet 350 in the most recognisable Australian coupe shape of its era. Around 1,200 were built and roughly 400 survive. It trades meaningfully below the HK and HT 327 Bathurst cars while offering more engine, which is an unusual combination.

The case against

It came after the Bathurst wins that made the 327 famous, and that shows in the price - collectors pay for the race history rather than the displacement. The 350 is easily swapped and originality is hard to verify, and coupe bodies rust in places that are expensive to reach.

Known faults and risks

Risk 1Chevrolet 350 originality is hard to verify and easy to fake
Risk 2Rust in the coupe roof, pillars and rear quarters
Risk 3Cars presented as Bathurst-era 327s
Rust repair, pillars and quarters$12,000
Engine originality verificationdocumentation
Full bare-metal restoration$45,000

Similar cars, and what they cost to run

Evidence behind this valueThin · 1 recorded sale
Carried value
$140,000
Historical price
2016 · $72,0002026 · $140,000
Thin
At least one recorded transaction plus a source. Direction is sound, the exact level less so.
Australian auction record

A 1970 HG Monaro 350 GTS coupe sold at Donington Auctions for $142,000 in August 2026. That is the only result on record for the HG 350 specifically, and it arrived while this library was being built.

Read the rest of the evidence notes (1 more)
Separation from the HK GTS 327

These are different cars sharing a body and a badge. The HK/HT 327 is the Bathurst car with five Shannons results between $96,000 and $301,000; the HG carries the larger Chevrolet 350 but came after the Bathurst wins and trades below the 327. Auction catalogues list both as Monaro GTS, and matching a 350 lot to a 327 entry - or the reverse - would misprice either by a wide margin. This entry exists so that does not happen. The $142,000 result sits sensibly between the HK 327 range and an ordinary Monaro.

This page prices the model.
The report prices the car in the advertisement.

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The evidence on this model is thin and the report says so on its cover. Read a complete one on a real car first. Seventeen sections, no account, nothing to pay.

This model, today$140,000
Half of sales are further out than$15,651
The report$249
63×
the price of the report: what half of real sales of this model sit further from this page's number than, on this car
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