"It's a different job from what I'm used to. Of course I would rather be running than doing development, but you can see another side that is not seen when running, "he said Di Grassi. "This development side of the tire is very, very complicated, more than I thought. So, being a worthwhile experience - I'm riding well, making several kilometers with an F1 this year. I'm getting a lot of experience trying to return to racing. "
