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Austin-Healey · 1956

100/6

Manual · RWD · United Kingdom

BN4BN6

AutoIndex value · good UK car

£45,000

Researched from UK sold prices and auction results. How we value cars

Estimated price by condition

Project

£27,000

Restoration candidate

Driver

£45,000

Good usable example

Concours

£67,500

Show standard

Indicative condition bands · not a valuation of a particular car

Price check

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Buyer’s notes

About the Austin-Healey 100/6

The 100-Six replaced the four-cylinder Austin-Healey 100 in 1956, with a 2,639 cc BMC C-series six and a wheelbase two inches longer. It was built as the BN4 2+2 and, from 1958, also as the BN6 two-seater, until the 3000 took over in 1959. Power rose from 102 bhp to 117 bhp in 1957 with a revised cylinder head and manifold.

What moves the price

  • Body: far fewer BN6 two-seaters were built than BN4 2+2s.
  • The chassis and body, the weakest parts of the car, with panels that are hard and expensive to find.
  • Matching chassis and engine numbers, and how original the panels are.

Before you buy, check

  • As on all the big Healeys, the chassis rails and outriggers, the floor, the sills and the A- and B-posts, on a lift.
  • The chassis number against the Austin-Healey records.
  • Signs of overheating, which on these cars usually means silted waterways, a sludged radiator or wrong ignition timing.

Facts checked against: Wikipedia · gbclassiccars.co.uk · rmsothebys.com · classiccarhub.co.uk · motorious.com · britishcarforum.com

The car

Vehicle data

Specifications

From 1956

Performance

Engine2.6L
Power117 hp
Torque195 Nm
0–60 mph10.4s
Top speed111 mph
Kerb weight1,040 kg
TransmissionManual
DrivetrainRWD

Production

Total builtNot published
Notable variantsBN4, BN6

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Austin-Healey 100/6: value questions answered

How much is a Austin-Healey 100/6 worth?
A good, usable UK example of the Austin-Healey 100/6 is worth around £45,000 on the AutoIndex index. A project car that needs restoration is nearer £27,000, and a concours-quality example around £67,500. Condition moves the price more than anything else.
What makes one 100/6 worth more than another?
  • Service history and paperwork — complete, stamped, explained
  • Mileage against the norm for the model
  • Originality — matching numbers, original paint and trim
  • Specification — gearbox, colour, factory options
  • UK-supplied versus imported
Is the 100/6 I'm looking at fairly priced?
Enter its asking price and condition in the price check above. It compares the price with the index for that condition and tells you what to ask the seller about.
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