McLaren's Jenson Button and Sergio Perez have waded into the debate on driver penalty points with both giving their qualified backing.

Button, the 2009 F1 world champion and a key figure on the Grand Prix Drivers Association, viewed it as a positive step to reduce dangerous driving in the sport. However he didn't give it his full backing because the current proposal, announced on Friday by the FIA's WMSC, is rather more complex than it first appears.

When asked for his thoughts on how the twelve points would equate to four three point penalties, Button told and other members of the assembled media: "From what I've seen it won't be a case of four accidents give you a ban, you could get five points for an incident. It's quite complicated so there's a lot to go through," he explained. "I personally think it's a good idea. We should be punished for mistakes and dangerous driving. I agree with a lot of it but I think that the GPDA needs to discuss our feelings on it."

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His team-mate, Perez, has been very combative so far in 2013 and was involved in some controversial incidents last year - notably when Pastor Maldonado crashed into him at Silverstone twelve months ago - and the Mexican feels that consistency is the key to the new regulation.

"I think that if you can help consistency it's a good thing for all of us," he confirmed.

McLaren team principal, Martin Whitmarsh meanwhile echoed the thoughts of his two drivers and also stressed the importance of consistency and transparency: "It has the advantage of being clear and straight forward but we need to make sure we have the consistent and objective scrutiny of the stewards," he warned.

"The introduction of the driver to the stewards has been very positive in this but I'm a bit worried that it could be artificial in the championship if someone gets close to that limit."

by Stephen English at Silverstone