If you import an old vehicle from another country, does it get a plate corresponding to its real age?

A quick google search led me to this company http://www.beetles-uk.com/camper.html

Not the kinds of Bay-Window Type 2's I'm used to seeing. When was that black plastic grille added?

The T2c, so called since it got a slightly raised roof — by about 10 cm — in the early 1990s, was built for the South American and Central American markets. The T2c was produced in Mexico until 1991* with the 1.6 L air-cooled Type 1 engine, and from 1991 until 1996 with water-cooled engines from the VW Golf (a VW/Audi 1.4L). Since 1997, the T2c has been built in Brazil with air-cooled engines for the Brazilian market and with water-cooled engines for the Mexican market, the latter easily identified by their large, black-coloured, front-mounted radiators.

Since production of the original Beetle was halted in late 2003, the T2 remained the only Volkswagen model with the traditional air-cooled, rear-mounted boxer engine when the Brazilian model shifted to water-cooled on December 23, 2005. Previously, the watercooled T2c was sold in Mexico between 1991-2002.