Austin-Healey 100 100M

1955 to 1956 · Roadster · Limited edition · 1,159 built

Over the past 12 months, 6 have sold publicly at a median of $92,050. The Shifty Estimate for a well-kept example is $108,800. Across the sales we have on file, prices ran from $27,750 to $196,000, depending on mileage, color, and history.

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Shifty Estimate
$108,800
Medium confidence · $63K to $137K
Median · 12 mo
$92,050
Sales · 12 mo
6
Market cap
$126.1M · 1,159 built

The market

Every recorded 1955 Austin-Healey 100 100M sale, by date and price
Apr 2026 · Bring a Trailer
$125,000 · 50 mi · Ivory White
See this car
$50k$100k$150k$200kMay 20182020202120222023202420252026SHIFTY ESTIMATE $109k
Sold Bid to, not sold
23 sales · 15 unsoldmedian $92kupdated Apr 2026

Community

Latest results

The newest 1955 Austin-Healey 100 100M sales with photographs
1955 Austin-Healey 100 100M, sold Feb 2026

Sold $77,550

1956 · Two-tone red and black · 92,000 mi
Feb 6, 2026 · Bring a Trailer
1955 Austin-Healey 100 100M, sold Dec 2025

Sold $99,100

1956 · White and black · 200 mi
Dec 3, 2025 · Bring a Trailer
1955 Austin-Healey 100 100M, sold Nov 2025

Sold $85,000

1955 · White/Red · 58,000 mi
Nov 25, 2025 · Bring a Trailer
1955 Austin-Healey 100 100M, sold Sep 2025

Sold $27,750

1956 · Black · 87,000 mi
Sep 17, 2025 · Bring a Trailer
1955 Austin-Healey 100 100M, sold Jul 2025

Sold $165,100

1956 · Red · 49,000 mi
Jul 21, 2025 · Bring a Trailer
1955 Austin-Healey 100 100M, sold Apr 2025

Sold $86,500

1956 · White · 63,000 mi
Apr 25, 2025 · Bring a Trailer
Other 100 generations

Specifications

Engine
I4, 2.7L
Power
110 hp
Torque
156 lb-ft
0 to 60
9.8 s
Top speed
109 mph
Transmission
Manual
Drivetrain
RWD
Curb weight
2,150 lb
Production
1,159 built

Common questions

How much does a Austin-Healey 100 100M cost?

Over the past 12 months, 6 have sold publicly at a median of $92,050. The Shifty Estimate for a well-kept example is $108,800. Across the sales we have on file, prices ran from $27,750 to $196,000, depending on mileage, color, and history.

What is a 1955 Austin-Healey 100 100M worth today?

The Shifty Estimate is $108,800. That sits above the $92,050 median of actual sales because the median counts every car that sold, including high-mileage examples, while the estimate describes a clean, low-mileage one bought today. We rate confidence medium: 6 public sales in a year is a thin market, and the spread between them is wide.

How many Austin-Healey 100 100M have sold?

Shifty has 23 public sales of the Austin-Healey 100 100M on file. The earliest was on Aug 16, 2019.

What is the most expensive Austin-Healey 100 100M sold?

The highest public sale on file is $196,000, on Mar 2, 2023.

What has a Austin-Healey 100 100M sold for at auction?

The 3 most recent public sales we have on file:

  • $125,000Apr 12, 2026Ivory White · 50 mi
  • $103,600Mar 5, 2026
  • $77,550Feb 6, 2026Two-tone red and black · 92,000 mi

About the 1955 Austin-Healey 100 100M

The 100M transformed Healey's sports car into a genuine performance machine, with factory modifications including a cold-air box, larger carburetors, and higher compression ratio boosting output to 110 horsepower. Only 1,159 examples received the Le Mans modification package, making the 100M significantly rarer than the standard car. The distinctive louvered bonnet, leather bonnet strap, and competition-style wire wheels announced its sporting intentions, while the improved four-speed transmission enhanced drivability. Built during 1955-1956, the 100M bridged the gap between the standard car and the ultra-rare 100S, offering enhanced performance with reasonable accessibility. The Le Mans connection adds motorsport cachet, as these modifications were inspired by the factory's racing program. Today, genuine 100M examples command strong premiums over standard cars, with collectors appreciating their perfect balance of performance, rarity, and period racing heritage.

Sales and listings

Showing 20 of 39 on file

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