Force India driver Paul di Resta has admitted that he is concerned about the new weight limit for Formula 1 cars and feels that heavier drivers will suffer.
The FIA have increased the weight limit from 642kg to 690kg, but with the extra weight being taken up by the new new turbocharged engines the ideal weight for a driver will be between 60kg and 65kg.
"It is a concern for a driver like me," BBC Sport quotes Di Resta as saying. "I am at the upper end, to the point where I am three or four kilos under what I would like to be to be healthy."
Di Resta, who is 6'0", weighs 75kg.