If you're not familiar with Volvo, the Volvo PV 544 and it's predecessor the PV 444, you might be interested in this historical stuff. In a historical Volvo Public Relations document they say about the PV 444 and 544:

"1944 - The introduction of a new and, to some extent, revolutionary car model which had been designed during the war years. The PV 444 became an immediate success and was to prove itself as one of the greatest Volvo successes. It was introduced, for example, on the American market and marks the definite breakthrough of Volvo products in the USA."

"1965 - The last of the 444/544 series was driven off the assembly line. 440,000 of these cars had been produced during the 21 years of production. More than 164,000 cars have been exported..."

Other Basic Information
PV 444 1944-58 (Versions A, B, C, D, E, H,K,L)
A four-seater car with a short-stroke 40 horsepower engine. Maximum speed 125 k. p h.
Integral construction body. The engine output of the A-model was later increased to 44 horsepower.
B: roof-mounted, stalked traffic indicator flashers, nicknamed the "Cuckoo", new dashboard, new steering wheel and combined ignition key and starter switch.
C: 15" wheels.
D: Side-mounted traffic indicator flashers and new steering gear.
E: New heater system.
H: Larger windscreen, one-piece rear window and larger relocated rear lights.
K: New engine developing 51 horsepower.
L: New engine developing 60 horsepower, new carburetter, air cleaner and oil filter, new exhaust system, new gearbox, rear traffic indicator flashers combined with tail and brake lights,
electrically driven windscreen wipers.

PV 544 1958-65 (Versions A, B, C, D, E, F, G)
The A version which was a development of the earlier model, was available with two types of engines developing 60 and 85 horsepower respectively with a three or four-speed gearbox for the 60 horsepower engine and four-speed gearbox for the 85 horsepower unit. Front seat safety belts were included as standard equipment.
C: Engine output was increased to 75 and 90 horsepower respectively. Asymmetrical headlights and a 12 volt electrical system were introduced.
G: The output of the sports engine was increased to 95 horsepower.