Without side-lining the original question, to put some perspective re Australian registered cars, we don't seem to be as fussy about exact replication (studs in the seats, RH gearshift, no rear rollbar, etc), we HAVE to comply with various emission rules, side impact protection, acoustic tests of exhaust, and similar. So as registered, the cars are part way towards a modern car. Then many I've seen, such as Dimi's and others, are deliberately built as usable long distance road cars. I've been in several which were not too noisy, had good insulation and effective air con, were rainproof, and had stereo, cruise control, central locking, electric mirrors, parking sensors or rear view camera, etc. Cruise control is vital due to the police radar units which police big divided highways quite savagely.