Description
Austin-Healey 100/6 BN4 | 1958
Highlights:
– Fast-road tuned 3.0L straight-six with triple SU carburetors
– Restoration with aluminium body panels
– Heritage certificate and full documentation included
– Disc brake conversion with dual-circuit system
– Mille Miglia eligible, with rare factory hardtop
The seller offers for sale this 1958 Austin-Healey 100/6 BN4, originally delivered in the UK in January 1958, finished in Colorado Red with a red leather interior matching its heritage certificate. This right-hand drive cabriolet has been restored to a high standard. Restoration was carried out with a focus on weight-saving, including aluminium wings and bonnet. It retains its original black factory hardtop and is supplied with a new soft top and matching side screens.
Mechanically, the car has been upgraded with a 3.0L straight-six in “fast road” specification, featuring triple SU carburetors, a tubular exhaust manifold, a stainless steel side exhaust, aluminium sump and rocker cover, and a large-capacity aluminium fuel tank fed by a Facet fuel pump. The engine runs on unleaded petrol. Braking is improved with a front disc conversion and dual-circuit system. It rides on upgraded 72-spoke wire wheels wrapped in brand new classic-style tyres.
Inside, the red leather upholstery remains largely intact with some patina on the driver’s seat but no tears or damage. The soft top and side screens are new. It is equipped with a Halda Tripmaster and period-style rally chrono, reflecting its Mille Miglia eligibility. The dashboard and switchgear appear original, in line with the restoration’s traditional approach.
Overall, the car is in a good condition. The car was brought to Belgium in 2013, repainted and then stored for 10 years. It has since been recommissioned with new brakes and lines. It is currently not registered for road use in Belgium but is sold with both UK and Belgian (E705) papers.
Austin-Healey’s 100/6, introduced in 1956 as a development of the original 100, added two rear seats (in BN4 form) and a six-cylinder engine for more power and refinement. Though early cars had 2.6L engines, later versions were fitted with the 2.9L C-Series straight-six, like this example. It helped transition the brand’s identity from no-frills sports cars to more mature grand tourers without sacrificing British charm.
Assembled at the MG plant in Abingdon and styled by Gerry Coker, the 100/6 was known for its balanced handling, classic low-slung proportions, and the unmistakable front grille. Its appeal lies in its duality: it offers both long-distance cruising ability and strong rally credentials. The BN4, with its 2+2 seating, was especially popular in export markets and lends itself well to touring events.
This car’s rally-focused modifications and presentation with heritage documents makes it a potential candidate for historic motorsport or prestigious vintage road events. The rare inclusion of a factory hardtop, upgraded mechanicals, and detailed history—including its time in the Netherlands post-restoration and its long-term storage—make it a distinctive proposition for collectors seeking a usable, eligible classic.
Condition of the Bodywork and Paint
4. Very Good: Small dents or scratches; may require minimal bodywork or paint correction.
Condition of the Interior
4. Very Good: Clean with minimal wear; may need minor replacements for small missing or broken parts.
Technical Condition
4. Very Good: Mechanically solid, with possible minor maintenance required.
Overall Condition
4. Very Good Condition: Shows only minimal wear and is ready to drive at any time.
This item is sold on an as-is basis. The condition of this item is the opinion of the seller and may differ from your own opinion. Photos and descriptions of the listing are for information purposes only.
We encourage all potential bidders to inspect the vehicle before placing a bid. Please contact us by phone or email to schedule an appointment.
All auction cars offered have a reserve price. You have only won the item if the seller accepts your bid.
Price changes and errors reserved. The 14-day right of withdrawal does not apply to this auction.
This car is currently located in provincie Antwerpen, Belgium.
This car drives, brakes and shifts.
The car has a Belgian E705 registration and original UK documents. The buyer is responsible for registration in his own country and responsible for delivery and collection of any vehicle purchased at the auction.
The description of this car is, to the best of the seller’s knowledge, accurate and not misleading. Route 66 Auctions requests a range of detail about the car from the seller and performs a level of due diligence. However, potential buyers must independently satisfy themselves as to the accuracy of the description. We strongly advise potential buyers to view or arrange inspections as well as conduct any research they feel is necessary before committing to bid or buy.
Please note that it is not uncommon for classic or collectible cars to have received cosmetic repairs in the past, to rectify damage or refresh appearance, and this work may be hard to see even upon visual inspection. Unless there is an explicit statement by the seller to the contrary, please assume that any vehicle could have had bodywork or paintwork. Photographs may not reflect the exact true colour or exact full condition of the vehicle. It is a bidder’s responsibility to assure themselves of the colour and condition of a vehicle, including its interior and the existence of any remedial bodywork or paintwork, before committing to bid or buy.
