(GMM)  Even with Fernando Alonso-mania in full swing, the grandstands at Circuit de Catalunya this weekend will remain a sea of blue.

At the height of the Spaniard’s title-winning run last decade, his supporters wore the light blue of his home region Asturias — which was a perfect match for the Mild Seven-blue of the Renault car.

But now that he has switched to Ferrari, the grandstands are set to remain blue in 2010, due to the newly-launched Ferrari T-shirt that is not scarlet red.

“I’m sure they will come with their blue flags and blue colours, plus the new Ferrari T-shirt that is blue,” 28-year-old Alonso said in Barcelona.

On one sleeve of the new blue T-shirt is the yellow cross of Asturias, combined with the Prancing Horse and Alonso signature on the front.

The F281, the new car of Ferrari for the 2010 season will be two colors, red, the color characteristic of the ‘Prancing Horse’, and white, for the sponsorship of Banco Santander. The rear wing and front will be white with red letters.

As if this were not enough change for the first time in history, next to the logo of the team (the ‘Prancing Horse’), it is the name of the bank, whose logo will also be painted in white on the mirrors.

The world premiere of this design was made today at the Ciudad Financiera del Banco Santander in Madrid town of Boadilla del Monte at a meeting of Juan Manuel Cendoya, CEO of Communications Division of the entity, with specialized areas.

The former head of Ferrari’s aerodynamics, John Iley, just change team, has joined McLaren to fill the same position they had in Maranello.

The British left the Italian team last July, following the poor performance of Ferrari.

His position as chief of aerodynamics at the ‘Prancing Horse’ is Marco de Luca, we’ve discussed in previous days, while Nikolas Tombazis, who returned to Maranello in 2006 after a stage in McLaren’s chief designer.