Other international single-seater racing series are the A1 Grand Prix (unofficially often referred to as the "world cup of motorsport"), and the GP2 (formerly known as Formula 3000 and Formula Two). Regional series include Formula Nippon and Formula V6 Asia (specifically in Asia), Formula Renault 3.5 (also known as the World Series by Renault, succession series of World Series by Nissan), Formula Three, Formula Palmer Audi and Formula Atlantic.