Arabic numerals
The first mentions of the numerals in the West are found in the "Codex Vigilanus" of 976.
Automobile model numbering system in the Soviet Union and Russia
The modern numbering system, documented as отраслевая нормаль (industry standard) ОН 025270-66, was first introduced in 1966 (but did not become effective immediately, so many vehicles that entered production before the mid-1970s still used the old numbering system; the first vehicle to use it was the all-new VAZ-2101, other plants switched to the new system later: Moskvitch - in 1976, Moskvitch 2140; GAZ - in 1982, GAZ-3102; and so on) and is still used in Russia, although not strictly adhered to by the manufacturers.