McLaren has halted work on a new suspension system after Formula One's governing body warned teams that anything that changed a car's ride height between qualifying and the race was illegal. “We've had to change some of the things we're doing. Basically, we had a system we were working on, and we've now suspended that,” engineering director Paddy Lowe told reporters Tuesday. He said the MP4-25 cars used by world champion Jenson Button and Lewis Hamilton in this weekend's Chinese Grand Prix would have some aerodynamic improvements but no other changes. McLaren is second in the championship after three races, 10 points behind Ferrari. The International Automobile Federation (FIA) wrote to all teams last week to clarify the rules after questions were raised about the suspension systems on some cars.
