Fiat - Fiat 1800 & 2100
The Fiat 1800 was available from 1959 as a 4 door (Familiare) with a 6 cylinder 1795cc engine, which was uprated for 1961 with a more powerful engine. The Fiat 2100, introduced the same year, had an increased capacity 2054cc engine, with the Fiat 2100 Speciale being built on a longer wheelbase. Production of the Fiat 1800 continued to 1968, whereas the Fiat 2100 ceased production earlier in 1961 after which the 4 cylinder Fiat 1500L version appeared for 1963.
Tyre size for Fiat 1800 and Fiat 2100 was originally 5.90x14, which is radial equivalent 165R14 tyre size. Blockley produces this 165HR14 tyre, full details of which are at the link below.