could you please tell me,
     1. who regularly imports the original Volkswagen Beetle (VW Mark
1 I think called Sedan) into the United Kingdom
     2. those companies contact details
     3. what modifications(if any) they make or have made to the car
and are these modifications compulsory ie. due to british or european
Union road standards
     4. what price they are sold at

I wasn't able to arrive at an answer I felt satisfactory for you, but
here are a couple of sites you might want to visit:

http://www.volkszone.com/
http://members.listsitepro.com/vwbug/index.shtml