Triumph TR5 Buyer’s Guide: Key Checks, Values, And Tips

The Triumph TR5 stands out as a fleeting masterpiece in British automotive history, produced solely from 1967 to 1969. This sports car combined the elegant lines of its TR4 predecessor with a potent fuel-injected straight-six engine, delivering thrilling performance that captivated enthusiasts across Europe. With only around 2,947 units built, its scarcity elevates it to collector status today.

Origins and Evolution of the TR5

Triumph’s TR lineage evolved from rugged roadsters like the TR3 into more refined machines by the mid-1960s. The TR4, launched in 1961, introduced a sophisticated chassis and Italian-inspired styling by Giovanni Michelotti. Its successor, the TR4A in 1965, added independent rear suspension (IRS) with coil springs, marking a leap in handling.

The TR5 arrived in July 1967 as the pinnacle of this progression. It swapped the TR4A’s four-cylinder for a 2.5-liter inline-six from the Triumph 2000 saloon, augmented by Lucas mechanical fuel injection. This setup produced 150 horsepower, enabling 0-60 mph in 8.1 seconds and a top speed of 120 mph—impressive for the era. North American markets received the detuned TR250 with carburetors, limited to 111 hp due to emissions rules.

Production halted in 1968 to make way for the TR6, which retained the six-cylinder but adopted carburetors universally. The TR5’s brief run underscores its ‘one-year wonder’ allure, bridging old-school charm with modern power.

Design and Engineering Highlights

Visually, the TR5 mirrored the TR4A’s curvaceous body, featuring a long hood, short deck, and distinctive Kammback tail. Subtle updates included a revised grille and badging. Underneath, rack-and-pinion steering ensured precise handling, while IRS with semi-trailing arms and lever-arm shocks provided composed ride quality.

Brakes comprised front Girling discs and rear drums, adequate for the time but often upgraded today. The four-speed manual transmission offered optional overdrive for highway cruising, paired with a torque-friendly rear axle ratio. Interiors boasted toggle switches, wood-rimmed steering wheel, and optional hardtop or Surrey top for versatility.

Performance and Driving Experience

Owners praise the TR5 for its balanced dynamics. The fuel-injected engine delivers smooth, urgent acceleration with a distinctive howl above 4,000 rpm. Steering is heavy at low speeds but sharpens underway, fostering confidence in corners. The IRS transforms it from the TR4’s tail-happy nature into a more planted handler, though lever shocks can feel dated.

Compared to the TR250’s sluggish 10.6-second 0-60, the TR5 feels urgent and alive. Real-world tests confirm quarter-mile times around 16.5 seconds, with agile road manners that reward spirited driving. Noise insulation is minimal, immersing drivers in mechanical symphony—a hallmark of 1960s sports cars.

Market Values and Investment Potential

As of 2026, a 1967 TR5 in good condition fetches around $42,100, with concours examples exceeding $60,000. Rarity drives appreciation; values have climbed steadily due to low survival rates and desirability over common TR6s. TR250s trade for 20-30% less, appealing to budget-conscious buyers.

Factors boosting value include originality, matching numbers, and UK-market PI systems. Restored drivers command premiums, while projects offer entry points under $25,000—but restoration costs can soar. Long-term, expect 5-10% annual appreciation for well-maintained cars, fueled by classic car market trends.

Key Inspection Areas Before Purchase

Buying a TR5 demands scrutiny, as age-related woes abound. Verify authenticity: chassis numbers start with ‘CP’ for TR5s, distinguishing from TR4 (CT) or TR4A (CTC). Check the commission plate on the nearside front wheelarch.

Body and Chassis Integrity

• Examine panel gaps for uniformity; unevenness signals crashes or chassis sag.
• Probe A/B-posts, floors, sills, and battery tray for rust—common rot spots that compromise structure.
• Inspect wheel arches, jacking points, and outriggers; repairs must be solid, not cosmetic.

Mechanical Essentials

• Engine: Listen for crankshaft end-float issues; test Lucas PI for crisp response—finicky but tunable.
• Suspension: Check trunnions for play (oil them regularly); replace degraded rubber rack mounts.
• Steering: Rack should be tight; clunks indicate worn components.
• Brakes and Overdrive: Ensure discs aren’t scored; test OD engagement.

A pre-purchase inspection by a TR specialist is invaluable, costing £200-400 but saving thousands.

Common Problems and Costly Fixes

The TR5’s Lucas injection demands expertise; cold starts can falter if metering units fail, with rebuilds at £1,500+. Overhaul the six-cylinder for £3,000-5,000 if neglected. Rust repairs vary: sill replacement £800 each, full chassis £10,000+.

Electrical gremlins from corroded wiring plague many; budget £500 for rewiring. IRS bushes degrade, costing £1,200 to refresh. Modern upgrades like disc rear brakes (£2,000) and five-speed gearboxes enhance usability without ruining character.

Restoration and Ownership Tips

Restoring a TR5 requires patience and parts sourcing—reproduction panels abound, but OEM trim is scarce. Join clubs like the TR Register for support, events, and expertise. Budget £20,000-50,000 for a full nut-and-bolt rebuild.

Maintenance emphasizes prevention: annual fluid changes, trunnion lubrication, and PI calibration. Fuel quality matters; modern E10 can corrode injectors—use premium additive. Expect 20-25 mpg combined, with affordable insurance for classics.

Daily usability? Viable with caveats—add sound deadening and seatbelts for comfort. Track days highlight its potential with minimal mods.

TR5 vs Competitors and Successors

Against the MG BGT or Sunbeam Alpine, the TR5 offered superior power. The TR6 successor added emissions-friendly carbs but lost PI purity. Austin-Healey 3000 matched straight-line speed but lacked IRS agility. Today, it rivals Porsche 912 values for similar thrills.

Frequently Asked Questions (FAQs)

What makes the TR5 special?

Its rare Lucas fuel injection and brief production run combine TR4 styling with TR6 power, making it the ‘sweet spot’ in the series.

How reliable is the TR5 engine?

Robust when maintained; the 2.5L six is durable, but PI requires specialist tuning.

Is a TR250 a good alternative?

Yes, cheaper and simpler carbs, but slower (111 hp vs 150).

What should I budget for ownership?

£10,000+ purchase, £2,000/year maintenance for a driver.

Can I drive a TR5 daily?

Possible with updates, but best as a weekend toy due to weather exposure.

Why Own a Triumph TR5 Today

The TR5 embodies 1960s British motoring: raw, engaging, and characterful. Its blend of beauty, pace, and rarity ensures enduring appeal. For collectors, it’s an appreciating asset; for drivers, pure joy. Approach with eyes open to its foibles, and it rewards generously.