Triumph 2500 PI
The Triumph 2500 PI was the flagship of the Triumph saloon range, combining the 2.5-litre fuel-injected six-cylinder engine with a spacious Michelotti-designed body and independent suspension on all four wheels. In its era, it was one of the most sophisticated British saloons available, competing credibly with the BMW 2002 and Rover P6 3500.
The 2.5-litre inline-six with Lucas mechanical fuel injection produced 132 horsepower, providing brisk performance for a saloon of this size. The engine was the same basic unit used in the TR5 and TR6 sports cars, though in a softer state of tune that prioritized smoothness and torque delivery for everyday driving. The fuel injection provided excellent throttle response and strong mid-range acceleration.
The independent rear suspension, shared with the TR sports cars, gave the 2500 PI handling and ride quality that was superior to many of its competitors. The car was comfortable over long distances, stable at speed, and surprisingly enjoyable on twisting roads. The combination of fuel injection and independent suspension created a driving experience that was genuinely ahead of its time for a British saloon.
Michelotti's styling was clean and modern, with a distinctive design that aged well over the model's production run. The interior was well-appointed with leather seats, wood veneer, and comprehensive instrumentation. Space for four adults was generous, and the boot was large enough for practical family use.
The 2500 PI was popular with police forces, who valued its combination of performance, reliability, and comfortable seating for long shifts. Many were used as high-speed pursuit vehicles, demonstrating the car's capability under demanding conditions.
The Triumph 2000/2500 range was produced from 1963 to 1977, with the PI version available from 1968. The Mk2 version, introduced in 1969, featured a revised front end and improved interior. Today, the 2500 PI is appreciated as one of the best-value classic British saloons, offering genuine character and mechanical interest at modest prices.
Rust is the primary concern; check inner sills, outer sills, floor pans, and rear spring turrets. The Lucas fuel injection system requires specialist knowledge; check for correct fuel pressure and metering unit condition. The independent rear suspension bushes wear and should be checked. The engine is fundamentally strong but check for head gasket condition and cooling system health. Overdrive is desirable for motorway use. The Triumph 2000/2500 Register maintains good records.
The 2000/2500 range was produced at Canley from 1963 to 1977. The PI (Petrol Injection) version was introduced in 1968. The Mk2 arrived in 1969 with revised styling. Estate versions were also available. The model was replaced by the Rover SD1 when British Leyland rationalized its saloon car range.