The well-know German web site Mobile.de (it is the biggest German site for car sales, in case you didn’t knew!) has a very interesting car for sale: a V10 powered Audi R8!
According to this page, the R8 V10 version will have a maximum power of 552 hp (412 kW) and a price of 250.000 euro.
Same page reports the car will make its official debut in February 2009 (Chicago Auto Show?), while sales will begin in the second quarter of 2009.