The Saint's Car

The car which was used throughout the series was a white Volvo P1800... or better several different versions of this car. Sometimes footage of different models was used in the same episode! (for example in Episodes #66 "The Smart Detective" or #68 "The Man Who Could Not Die")
Actually four cars existed over the course of the series, identified by their number plate:

Read more at this external link:
Volvo Owners Club 

An article about the car and how the show helped to increase Volvo's sales in general on SouthCoastToday. (on WaybackMachine; original link thanks to

Finally, two articles about the car in general on Promotex and Carbuzz.

Here's a test drive from March 2013 by XCAR:
TV show host Jay Leno checks out the NUV 648E car in his "Jay Leno's Garage" show:

Last updated: 03/03/2018