World's rarest car?

http://www.audiusa.com/us/brand/en/about/main/history/brand_family_tree/Horch.html#source=h


There is one unusual car that might be the world's rarest sport model.  It is called the Horch, built as early as the 1900's by the founder of Audi cars, visit the website for information.  Last year at Pebble Beach it took the prize.  This car is probably one of 4 in the world.  I will find the link for Pebble Beach and put it here for you, if you care to read more.

http://www.topspeed.com/cars/car-news/1937-horch-wins-best-of-show-at-the-2009-pebble-beach-concours-d-elegance-ar78074.html

This fabulous car competed with the Mercedes 540 K as one of the most desired cars in the world, in it's day.