Rover P6 3500
The Rover P6 3500 is one of the most technically sophisticated British saloon cars of its era, combining an innovative chassis and body structure with the brilliantly acquired Buick aluminium V8 engine. The P6 platform, which had won the inaugural European Car of the Year award in 1964 as the Rover 2000, was already recognised as an outstanding piece of engineering before the V8 was shoehorned into it.
The P6's construction was genuinely advanced. Rather than a conventional monocoque, it used a steel skeleton (base unit) with bolt-on external body panels — a system that was theoretically designed to allow easy panel replacement and even complete reskinning for facelifts. The front suspension used horizontal coil springs and an anti-dive geometry, while the rear employed a sophisticated de Dion tube with Watt linkage — technology more commonly found in racing cars. All four brakes were discs, with the front pair mounted inboard for reduced unsprung weight.
The 3500 variant, introduced in 1968, fitted the 3.5-litre aluminium V8 into this advanced platform. The result was a car of remarkable versatility — smooth, refined, and comfortable at motorway speeds, yet with enough performance (0-60 mph in 10.1 seconds, 117 mph top speed) to keep pace with genuine sports saloons. The V8 engine was also substantially lighter than the four-cylinder 2000's engine, improving the car's balance and handling.
The 3500S (manual gearbox) variant, introduced in 1971, was the enthusiast's choice. With the driver in full control of the V8's wide powerband, the 3500S was genuinely entertaining to drive, with well-balanced handling and communicative steering. Automotive journalists of the period consistently praised it as one of the finest driving saloons available.
The P6 was also notable for its safety features, advanced for the period. The instrument panel was designed to minimise injury in a collision, the door latches were engineered to resist opening in a crash, and the overall structure was remarkably strong. These features reflected Rover's engineering integrity and concern for occupant protection.
Total P6 production exceeded 322,000 units across all variants, making it one of Rover's most successful models. The 3500 accounts for approximately one-third of this total. Today, the P6 3500 offers an accessible entry to Rover V8 ownership, with a strong enthusiast community and good parts availability.
Rust is the main concern. The bolt-on body panels make rust assessment somewhat easier, but the critical areas are the base unit structure, front and rear subframes, and the spring turrets. The aluminium V8 is reliable and well-supported with parts. Check for coolant leaks and head gasket issues. The de Dion rear suspension is sophisticated but requires specialist knowledge — check the universal joints and the Watt linkage for wear. The 3500S (manual) is more sought-after than the automatic. Interior trim is available from the Rover P6 Club and specialist suppliers. NADA-spec cars (for the North American market) are less desirable in the UK due to emissions equipment.
Rover P6 total production: 322,302 units (1963-1977) across all variants including 2000, 2000TC, 2200, 3500, and 3500S. The 3500 was introduced in 1968 with automatic transmission only; the 3500S (manual) followed in 1971. NADA (North American) and Australian-spec cars were also produced. The P6 was replaced by the SD1 in 1976-77. European Car of the Year 1964 (as 2000).