Martinez joins Garza at Team Mexico

Garza is not ineligible anymore to take part in the rookie practice sessions, so Martinez will drive the Mexican car on Friday morning.

Martinez, who raced four times for the team in the first A1GP season, is glad to be back in action.

"I'm really happy to be able to represent Mexico and to help the team achieve a good result in front of all the Mexican fans, and what better way to do it than alongside David Garza," said Martinez.

"For many years we've wanted to be teammates and finally we are going to get a chance to do it.

"During the last few months I've kept myself busy and in shape driving Champ Cars, I've learned quite a bit and I believe that I will be able to apply that knowledge to help A1 Team Mexico improve their set-up.

"I love this track, I've had a lot of success here and I'm really looking forward to putting in some quick laps in the Mexican car.

"I've always followed A1GP very closely, I think it is a very special concept and it's usually some of the best racing in international motorsports. I'm really glad to be back with A1 Team Mexico and I hope that together we can achieve a great result.