VOLVO P1800 S/E/ES History I will stick to some short facts about the production years of Volvo 1800. There are plenty of excellent sources for Volvo 1800 history written in English. I can recommend "Volvo 1800 - The complete Story" by David G. Styles. One thing which is interesting for determining the age of a car. Below you can see which years what chassis numbers were made. Model         Year              Chassis            Production P1800 A-C   1961-1963     1-6000             Scotland/England P1800 C      1963             6001-8000b      Scotland/Sweden P1800S D    1963-1964     8001-12499      Scotland/Sweden 1800S E      1964-1965     12500-16499    Scotland/Sweden 1800S F      1965-1966     16500-20999    Scotland/Sweden 1800S M     1966-1967     21000-25499    Scotland/Sweden 1800S P      1967-1968     25500-28299    Scotland/Sweden 1800S S      1968-1969     28300-30000    Scotland/Sweden 1800E T      1969-1970     30001-32799    Sweden 1800E U      1970-1971     32800-37549    Sweden 1800E W     1971-1972     37550-39414    Sweden       1800ES W   1971-1972     0001-3069b      Sweden 1800ES Y    1972-1973     3070 -8077b     Sweden From 1961 to some point in 1963 the P1800s were assembled at the Jensen factories in England and are therefore commonly referred to as a Volvo P1800 Jensen. In 1963 Production was moved from England to Sweden and the model name is more correctly 1800S but I will insist on referring to these models as a P1800S as they have a higher visual resemblance with the P1800 model than the 1965 1800S.