"It has been a very interesting experience to have two new drivers in the car today," reflected Toyota's senior chassis general manager, Pascal Vasselon. "We are very pleased to have Timo in the car and he has made a strong first impression.

"He is very focused and worked hard today to understand the car and make some improvements in set-up. As expected, he did a good job and provided solid feedback, which is very useful for us. He drove without driver aids today but that was no problem for him because of his experience in GP2 driving without traction is natural to him.

"The team already know Kamui from his tests with us last winter but he is a young driver with not so much Formula 1 experience so he had to acclimatise and get used to a Formula 1 car again.

"He did a good job, didn't make any mistakes and gave us some data on set-up with the new electronics system and new rear end. He also completed an impressive number of laps which shows how fit he is."

Testing now continues on Wednesday.