The current Formula One drivers' cockpit workload is no higher than in the past, according to former ten-time Grand Prix winner Gerhard Berger.
Many drivers, including GPDA director Sebastian Vettel who has threatened a strike, have expressed concerns about having to use KERS at the same time as adjusting the new moveable rear wing on track in 2011.
The latest concerns have been raised by Vettel's Red Bull teammate Mark Webber, who thinks the adjustable wings should be disallowed in practice and particularly qualifying, as they are likely to be deployed between most corners.
The complexity of driving in our time was also at least as great
Bt Austrian Berger, who contested more than 200 races between 1984 and 1997, told Kleine Zeitung: "We had to adjust the differential, traction control, fuel mixture, turbo boost, power brakes, active suspension ...
"So nothing has changed; the complexity of driving in our time was also at least as great," he added.