The first six-cylinder Volvo engine was ready in 1929. The first car to be equipped with the DB engine was the PV651. The engine had a capacity of just over 3 litres and the output was a modest 55 bhp. It was a strong and flexible unit, two properties that characterise the in-line six as a technical design.

The PV651 and its successor, the PV652, were both longer and wider than previous Volvo cars. All four wheels were given four-wheel brakes as standard, either mechanically (PV551) or hydraulically (PV652) operated.

Technical Specifications

Model: PV651
Variants: PV652, PV650 Chassis, 650 Special
Produced: 1929 - 1933
Volume: 2382
Body: Saloon or convertible.
Engine: In-line, 6-cylinder with side valves; 3,010 cc; 76.2x110 mm; 55 bhp at 3,000 rpm.