Dominguez in line for Mexico seat

The 30-year-old has flown from Monday's delayed Champ Car race in Montreal to Silverstone in time for the first day of the official two-day test at the circuit, in order to evaluate the 550bhp A1 car with a possible view to racing in some events this season.

"I'm not committed to anything yet, I'm just here for the test just wanted to give it a try," Dominguez told autosport.com.

Double A1 race winner Salvador Duran will also test the Mexican car at the British circuit in the test, and is also expected to race for the team this season.

However, Dominguez had to sit out the opening minutes of the session this morning, while the team fixed engine gremlins on the car.

Dominguez is one of several late additions to the driving line-up at the test, the only chance A1 teams get to run together before the season opener at Zandvoort on October 1.

Reigning Indy Pro Series champion Wade Cunningham is testing for New Zealand, while Switzerland are testing former DTM driver Marcel Fassler.

South Africa has a packed testing programme, with Honda F1 tester Alan Van der Merwe and Formula Renault Eurocup racer Adrian Zaugg joining last season's drivers Stephen Simpson, Tomas Scheckter and Gavin Cronje.

A1 Team Indonesia regular Ananda Mikola is testing alongside his brother Moreno Soeprato.

Provisional entry list:

Australia       Karl Reindler, Ian Dyk
Brazil          Tuka Rocha, Alexandre Negrao, 
                Raphael Matos, Rubens Carrapatoso
Canada          Sean McIntosh, James Hinchcliffe
China  	        Congfu Cheng
Czech Republic  Janis Jaroslav, Jan Charouz
France          Alexandre Premat, Nicolas Lapierre
Germany         Nico Hulkenberg, Michael Ammermuller
GBR             Robbie Kerr, Darren Manning, Oliver Jarvis
Indonesia       Ananda Mikola, Moreno Soeprapto
Ireland         Michael Devaney, Patrick Hogan
Italy           Gian Maria Gabbiani, Michele Rugolo,  
                Manuele Gatto, Alessandro Pierguidi, Davide Valsecchi
Lebanon         Graham Rahal, Basil Shaaban
Malaysia        Alex Yoong, Fairuz Fauzy, Nick Iruwan, Aaron Lin
Mexico          Salvador Duran, Mario Dominguez
Netherlands     Jos Verstappen
New Zealand     Johnny Reid, Chris van der Drift, Wade Cunningham
Pakistan        Adam Khan
South Africa    Tomas Scheckter, Stephen Simpson, 
                Gavin Cronje, Adrian Zaugg, Alan van der Merwe
Switzerland     Sebastian Buemi, Marcel Fassler
USA             Al Unser Jr, Phil Giebler