Super Aguri to use revised aero package

The Honda-powered squad are testing the SA05, based on an old Arrows chassis, in order to check the systems in what is their first public outing.

The car is running with an old aerodynamic package that autosport.com understands does not comply with the 2006 regulations.

But technical director Mark Preston revealed the team will test a revised bodywork next week at the Silverstone circuit, adding that only the current car's mechanical and electronic systems will be used in the first race in Bahrain.

"The systems car that we are running in Barcelona this week during our test does not have the definitive 2006 bodywork, this will be released at Silverstone next week," Preston said. "The systems car is exactly that, a systems car.

"It is running the full mechanical and electronic specification that will be taken to Bahrain. This gives us the maximum time in the wind tunnel to work on downforce."