Formula One's governing body released the official entry list for the 2011 season Tuesday, with only six teams having set their lineups.
Red Bull, McLaren, Ferrari, Mercedes, Sauber and Lotus confirmed their drivers, with Sauber's Sergio Perez Mendoza of Mexico the only newcomer. Perez Mendoza will team up with Japanese driver Kamui Kobayashi.
The list confirmed Lotus would retain current drivers Jarno Trulli and Heikki Kovalainen.
Robert Kubica's teammate at Renault has yet to be announced after the team ended negotiations with former world champion Kimi Raikkonen.
Williams, which has agreed to a new deal with Rubens Barrichello, has yet to confirm its second driver after Nico Hulkenberg left the team at the end of the 2010 season.
Four teams have no drivers entered for 2011: Force India, Toro Rosso, Virgin and Hispania.
