Highlights

Rare and desirable Surrey top configuration with both a detachable hard roof panel and a vinyl soft top
Comprehensive, highly documented £75,000+ sympathetic restoration completed in May 2010 - a truly outstanding example
In current ownership since 2016, used exclusively as a dry-weather weekend car
Factory IRS modernised with polyurethane bushings, upgraded differential mounts, and CV drive shafts
Overdrive fitted
Accompanied by a history file, spare parts, and an additional wire wheel and tyre

The Appeal

The letters 'IRS' are music to the ears of anyone who knows their Triumph TR4s. Standing for independent rear suspension, the badge denotes the later evolution of the celebrated sports car, with vastly improved ride quality and handling. Examples fitted with the Surrey top, combining a detachable solid roof panel with a fold-away soft top, are particularly sought after, offering both coupé comfort and open-air motoring at the owner's discretion.

This 1966 exceptional example, finished in Wedgewood Blue, has benefited from a comprehensive and highly documented restoration costing in excess of £75,000, carried out with a focus on retaining original components where possible. In the hands of its current keeper since 2016, it has been enjoyed exclusively as a dry-weather weekend car, covering many miles with the TR Devon group across the county's lanes and beyond.

Mechanically, the factory IRS has been strengthened with polyurethane bushings, upgraded differential mounts, and constant velocity drive shafts, while the engine benefits from an unleaded cylinder head, electronic ignition, and an electric cooling fan: all sensible upgrades for modern use. With overdrive on 2nd, 3rd, and 4th gears, the vendor reports it cruises with ease at motorway speeds and drives confidently on country roads. The vendor describes the bodywork as structurally very sound and fully undersealed, and this appears to be a very well-sorted TR4A IRS ready to drive away.

Key Information

Mileage: 33,419 miles indicated; however, records supplied confirm the true mileage is 133,419 miles
Country of registration: United Kingdom
Technical inspection status: MOT/road tax exempt
Technical specs: 2.1-litre inline four-cylinder petrol, four-speed manual with overdrive
Paperwork: history file and separate restoration file, with a large collection of invoices and photographs (see gallery)

The Detail

Short period registration 'ENF 4D' included in the sale
Vredestein T-Trac tyres fitted
Painted wire wheels
Exceedingly presentable paintwork finished in Wedgewood Blue; the vendor reports a few very minor blemishes consistent with light use
The vendor notes that the interior presents particularly well, featuring a walnut dashboard, original seats and carpets, door cards, and a wood-rim steering wheel
All instruments and switches reported to be fully operational
Lighting converted to full LED throughout for improved visibility
Radiator, rear splined hubs, and front brake discs and pads have been replaced
As is common with IRS models, an occasional rear-end clunk is noted by the vendor
The vendor reports it starts easily and performs well
The car's underside is well-presented and has been photographed in detail for your inspection
Very clean under bonnet presentation
Original steering wheel, a box of spare parts, and an additional wire wheel and tyre accompany the vehicle
Oil pressure when fully warmed up at tickover is 50 psi and at 1500 rpm is 55 psi.

BEFORE YOU BUY

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