Triumph Dolomite Sprint: A UK Classic

The Triumph Dolomite Sprint holds a special place in the hearts of many classic car enthusiasts, particularly in the United Kingdom. Recently, Practical Classics magazine identified it as the top classic car choice for those with a budget of around £4,000, highlighting its enduring appeal. While not widely known in North America, this stylish, high-performance compact sedan has garnered a dedicated following and is increasingly recognised as a true classic, with a growing number of privately imported examples now gracing US roads.

A Rich and Evolving Pedigree

The rear-wheel-drive Dolomite Sprint, produced between January 1973 and August 1980, was the pinnacle of a car range with a fascinating and somewhat unconventional production history. Its roots can be traced back to the front-wheel-drive Triumph 1300, launched in 1965. These front-wheel-drive Triumphs were initially conceived to rival the iconic Austin Mini. This was a period before Triumph and Austin became sister companies under the British Leyland umbrella in 1968.

The Triumph 1300, styled by Triumph's Italian design consultant Giovanni Michelotti, proved to be a successful model, with over 200,000 units produced between 1965 and 1973. However, the front-wheel-drive configuration, while innovative, was both costly to manufacture and complex to service. In a rather unique engineering move, Triumph engineers in 1970 re-engineered the 1300's floorpan to convert the car to rear-wheel drive. The initial rear-wheel-drive iterations were badged as the Toledo and were available with either 1300cc or 1500cc engines. Notably, unlike many other Triumphs of the era, these rear-wheel-drive models lacked independent rear suspension, instead featuring a robust live axle.

The Dawn of the Dolomite and the Sprint's Innovation

The first car to bear the Dolomite name appeared in January 1972. It was the introduction of a 1,850cc overhead-cam slant-four engine that truly set the Dolomite apart from its less powerful stablemates. This 1,850cc engine was a precursor to the 2.0-litre engine destined for the TR7 and shared significant design elements with the slant-four engine Triumph supplied to Saab for their 99 model.

The Dolomite 1850 produced a respectable 91 horsepower and utilised the same fundamental gearbox as the venerable Triumph Spitfire, along with Triumph's lighter-duty rear axle. However, it was the Dolomite Sprint, born in January 1973, that truly captured the imagination. If the standard Dolomites were perhaps a little understated in their technical specifications, the Sprint more than compensated. As Practical Classics aptly put it, "This was the template for the compact executive sporting saloon."

The Sprint's groundbreaking feature was its engine: the very first 16-valve four-cylinder engine to enter regular volume production. While other manufacturers had experimented with 16-valve engines, they were typically offered only in kit form or as extremely limited, special-order options. The Dolomite Sprint can arguably be considered a prime example of Triumph's dedication to over-engineering.

Engineering Excellence and Rally Prowess

The transmission employed in the Sprint was the same robust unit found in the TR6, Stag, and 2500 models. Similarly, the heavy-duty live rear axle was also derived from the TR6, contributing to the car's solid and reliable performance. The heart of the Sprint was its 2.0-litre engine, officially rated at 127 horsepower, but readily capable of producing 150 horsepower with minor tuning. This potent combination made the Dolomite Sprint a formidable competitor, enjoying a distinguished career in the demanding world of rallying.

Interior Comfort and Styling

The interior of all Dolomite models reflected traditional Triumph craftsmanship, featuring a stylish walnut veneer dashboard, gauges reminiscent of the TR6, and elegant wood trim on the doors. In its early years, the Sprint was a sensation, drawing favourable comparisons to contemporary BMW and Alfa Romeo models. By British standards of the time, the Sprint was exceptionally well-equipped, boasting factory alloy wheels, a front spoiler, a rear demister, a steering column adjustable for both rake and height, and a host of other desirable features.

Options and Production Figures

The Dolomite range remained largely consistent throughout its production run, with later models receiving a revised dual-circuit braking system and a few minor aesthetic updates. Options were relatively limited. A Borg-Warner automatic transmission was available across the Sprint, 1850, and 1500 models. However, the overwhelming majority of Dolomites were equipped with a four-speed manual transmission. With the exception of very early production cars, overdrive was a standard feature on the Sprint, enhancing its cruising capabilities.

A popular dealer-fitted accessory was the Britax or Webasto folding sunroof, adding an extra touch of open-air motoring enjoyment. Of the Dolomite variants, the 1850 proved to be the most popular, with approximately 79,000 units produced. The Sprint, though the most desirable for many, saw a production run of 22,941 units. In total, Triumph manufactured over 420,000 rear-wheel-drive Toledos and Dolomites. However, it is the Sprint that continues to be the object of desire for many Triumph aficionados and the model most frequently imported into the United States.

Performance and Practicality

The Dolomite Sprint is a rare example of a car that excels in virtually every aspect. In standard tune, it could achieve the 0-to-60 mph sprint in under 9 seconds, reach a top speed of 115 mph, and still deliver impressive fuel economy of around 30 mpg. The seats were designed for comfort, and the interior was considered luxurious by the standards of 1970s economy cars. Visibility was excellent, and the rear seat and boot space were remarkably generous for a car of its size.

Common Issues and Parts Availability

Like many cars from the 1970s, rust is the primary vulnerability of the Dolomite range. As a unibody construction, addressing rust requires cutting and welding, which can be a costly undertaking. Consequently, most surviving Dolomites will either exhibit signs of rust or will have undergone rust repairs. The braking and cooling systems are other areas that often benefit from upgrades in the Sprint.

Fortunately, the parts situation for the Dolomite Sprint is generally quite favourable. Virtually all mechanical components are readily available through specialist suppliers like Rimmer Brothers or the Triumph Dolomite Club. While many trim and electrical parts are also accessible, some items, such as original seat upholstery or door panels, may be harder to source new or as reproductions. However, essential items like rubber weatherstripping, bumpers, and exterior badging are widely available. Aftermarket carpets and most body panels can also be obtained.

Cross-Platform Parts Compatibility

For enthusiasts in the US, the parts availability for Dolomites is surprisingly good, especially considering the car was never officially sold there. Routine maintenance and minor repairs can often be carried out using parts that are also compatible with other Triumph models. Crucially, the Sprint shares many parts with the TR6 and TR7, and even some with the Stag. This means that if you are familiar with working on a TR7 engine, you will find the Dolomite Sprint's engine technology to be very similar, making maintenance and repairs more accessible.

Importing a Dolomite Sprint

A significant advantage for US-based enthusiasts is that any Dolomite, regardless of its age, can now be legally imported into the USA without facing federal safety or emissions restrictions. This is because vehicles that are 25 years or older are exempt from these regulations. While left-hand-drive versions of the Dolomite were produced, they are exceptionally rare, with the vast majority of Dolomites being sold in Great Britain.

Key Specifications (Triumph Dolomite Sprint)

Frequently Asked Questions

Q1: What engine does the Triumph TR7 have?
The Triumph TR7 is typically equipped with a 2.0-litre slant-four engine, similar in design to the one found in the Dolomite 1850, though the Sprint variant features a more powerful 16-valve version.

Q2: Is the Triumph Dolomite Sprint a reliable car?
When well-maintained and with any rust issues addressed, the Dolomite Sprint is a capable and enjoyable car. Its robust mechanical components, shared with other Triumph models, contribute to its reliability. However, like many classic cars, regular maintenance is key.

Q3: Where can I find parts for a Triumph Dolomite Sprint?
Parts are available from specialist suppliers such as Rimmer Brothers and through dedicated owner clubs like the Triumph Dolomite Club. Many mechanical parts are also shared with the TR6 and TR7, broadening the availability.

Q4: What makes the Dolomite Sprint special?
The Dolomite Sprint is renowned for being the first mass-produced car with a 16-valve four-cylinder engine. Its combination of performance, stylish design, and rally success cemented its status as a desirable classic.

Q5: Can I import a Triumph Dolomite Sprint to the USA?
Yes, any Dolomite, including the Sprint, can be legally imported into the USA as they are exempt from federal safety and emissions standards due to their age (25 years or older).

The Triumph Dolomite Sprint remains a compelling proposition for classic car enthusiasts seeking a blend of performance, style, and historical significance. Its unique engineering and sporting heritage ensure its continued appeal for years to come.