These cars are not original factory racecars.
They were built up from normal roadcars about 2 years ago.
They have not attended in all the races from this series, because they are private teams and it is expensive to make the full series through all the different countries in Europe.
But, when they are on the track, they are not only good looking, they are really fast. This year they brought home only a second place, but last year Claus Bjerglund with the white car could win his race.
See more at:
http://www.fia-historic-racing.com