Here's a link to the 1957 SCCA race school at Lime Rock. A little bit of PV444 action at about 9:13.
https://youtu.be/YnxQ-ArSF8g
Here's a link to a video of me chasing a PV544 at Lime Rock in 2014. Car driven by Shaun Henderson. Sadly, he rolled the car the following year and I think it was a total loss. It took me forever to catch up, Volvo action starts at around 11:00 but heats up a bit at around 13:00.
https://youtu.be/u76Cg-dX1FE