On the 15th of February 2006, on the occasion of the tests of the new Toyota F1 in Vallelunga, Jarno Trulli presented the new Trulli-Karts, that are produced by Swiss Hutless in Switzerland. It was a very succesful event and also the international motorsport press joined the presentation. Jarno Trulli was convinced of both vehicles. About his new karts he said, that he is very happy with the two new models JT4 and JT5 and he will recommend them with joy to the customers.