What a classic Armstrong Siddeley sells for at auction
The median, the usual range and the way prices have moved, from 130 recorded Armstrong Siddeley sales at public auction since 2000: which models make the most, which come up most often, and what each of them sells for.
Part of: Armstrong Siddeley, the full marque guide130 Armstrong Siddeleys have sold at public auction since 2000, at a median of £8,783; the middle half of them made between £4,670 and £13,150. The sale rooms see about 8 a year and 78% of the cars offered find a buyer. The Hurricane is the one that comes up most often, with 17 sales on record at a median of £11,033. The highest result is £63,100, paid for a 30hp in September 2015.
In 2025 the median classic Armstrong Siddeley sold for £8,550 across 12 sales, 60% up on 2024. In real terms, typical classic Armstrong Siddeley prices were down about 17% over the five years to 2025, once inflation is accounted for.
Show the year-by-year medians Hide the year-by-year medians
| Year | Sold | Median | In 2025 money |
|---|---|---|---|
| 2026 (so far) | 8 | £6,658 | |
| 2025 | 12 | £8,550 | £8,550 |
| 2024 | 10 | £5,348 | £5,553 |
| 2023 | 3 | £10,864 | £11,658 |
| 2022 | 8 | £7,056 | £8,081 |
| 2021 | 5 | £7,650 | £9,460 |
| 2020 | 14 | £8,158 | £10,337 |
| 2019 | 6 | £6,370 | £8,155 |
| 2017 | 11 | £11,812 | £15,734 |
| 2016 | 7 | £10,688 | £14,603 |
| 2015 | 7 | £9,200 | £12,696 |
| 2014 | 8 | £9,282 | £12,860 |
| 2013 | 3 | £16,875 | £23,714 |
| 2012 | 3 | £1,462 | £2,102 |
| 2011 | 4 | £10,479 | £15,450 |
| 2010 | 3 | £6,525 | £9,994 |
| 2008 | 3 | £3,910 | £6,260 |
| 2005 | 7 | £11,250 | £19,553 |
| 2004 | 3 | £4,500 | £7,982 |
Which Armstrong Siddeley models make the most
Not every Armstrong Siddeley is priced alike. The 20hp sits at the top of the marque, with a median of £15,750 across 5 sales and most of them between £13,000 and £17,156. The 12/6 sits at the bottom at a median of £1,150, so the dearest Armstrong Siddeley model typically makes about 14 times what the cheapest does.
- 20hp£15,750 median, usually £13,000 to £17,156
- Hurricane£11,033 median, usually £9,775 to £15,151
- Star Sapphire£8,783 median, usually £5,456 to £18,725
- 17hp£8,212 median, usually £5,346 to £9,616
- Sapphire 346£5,962 median, usually £5,216 to £10,406
- 14hp£5,660 median, usually £5,176 to £8,833
- 12hp£5,616 median, usually £3,910 to £9,016
- Whitley£5,270 median, usually £4,388 to £6,795
- Sapphire£4,500 median, usually £1,250 to £7,200
- 12/6£1,150 median, usually £1,125 to £2,875
The busiest Armstrong Siddeley models in the sale rooms
| Model | Sales | Usual range | Median |
|---|---|---|---|
| Hurricane | 17 | £9,775 to £15,151 | £11,033 |
| Star Sapphire | 10 | £5,456 to £18,725 | £8,783 |
| Whitley | 9 | £4,388 to £6,795 | £5,270 |
| Sapphire | 9 | £1,250 to £7,200 | £4,500 |
| 12hp | 9 | £3,910 to £9,016 | £5,616 |
| 17hp | 8 | £5,346 to £9,616 | £8,212 |
| Sapphire 346 | 8 | £5,216 to £10,406 | £5,962 |
| 14hp | 6 | £5,176 to £8,833 | £5,660 |
| 12/6 | 5 | £1,125 to £2,875 | £1,150 |
| 20hp | 5 | £13,000 to £17,156 | £15,750 |
Plus 44 rarer variants with too few sales for a row of their own.
The latest Armstrong Siddeley sales
- £1,487 Sapphire 346
- £21,404 Star Sapphire
- £400 Sapphire
- £9,128 Star Sapphire
- £4,300 Armstrong Siddeley
Frequently asked questions
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Before you buy or sell
- Buying a classic at auction
Why the hammer price is never the price, what Category S and N actually mean, why a clean-looking V5C proves less than buyers assume, and how to think about bidding on a car nobody has let you inspect.
- Selling a classic privately
A private seller is not a shop, and the law knows it. Which consumer protections fall away, which three rules still bind you, why selling an unroadworthy car is an offence whoever you are, the DVLA steps that end your liability, and the payment habits that keep the money.
- Agreed value insurance
The trade valuation guides insurers use do not value cars over about twenty years old, which is why a classic on a market-value policy is a claim waiting to be argued. What the Financial Ombudsman expects, what the regulator found when it looked, what agreed value actually promises, and the evidence that sets it.
- What a restoration really costs
Why restoration bills reach numbers that horrify outsiders, where the money actually goes, and the practical protections that matter when handing a valuable car to a workshop for a year. Staged payments, written scope, and what happens if the business fails.
- Inspecting a classic before buying
The two free government checks and what they reveal, why the log book proves less than every buyer assumes, the serial numbers DVLA tells you to look for, what a paid history check adds, and where your rights differ between a dealer and a private seller.
- What a classic costs to run
The fixed costs are knowable to the pound, from the zero-rated tax to the capped MOT fee to the price of petrol this week. The variable costs are where the money goes, and no official source publishes them. What can be stated, what cannot, and how to budget for a car that was built to be fixed.
Reasonable evidence. 130 recorded sales: enough for the range to mean something, though a few unusual cars can still move a single year's median. Sold prices from public classic car auction results (2000 to 10 August 2026), not asking prices and not a valuation: a concours car and a project both sit inside these ranges, and condition, history and specification move any one car well outside them. Inflation-adjusted figures use the ONS CPIH index, in 2025 money. How to read these figures.