Red Bull designer Adrian Newey admits that he has concerns about the safety of F1's new-look cars following the launch of the RB10 in Spain.

Alongside the new engine formula introduced for 2014, revised aerodynamic rules have resulted in a wide range of approaches to changes that mandate a lower nose than seen in recent seasons.

The decision to adopt lower noses was taken by the FIA in an effort to improve safety and reduce the chance of a car being launched into the air but Newey said he was concerned that the change could actually have the opposite effect - and that drivers could end up being injured as a result.

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"The regulations has been introduced following some research by the FIA that said that the nose height reduces the chances of cars being launched," he told reporters at Jerez. "It's an attempt to avoid a repeat of something like the accident that Mark Webber had when he hit the back of Kovalainen at Valencia a few years ago.

"However, I must admit that I am concerned that the opposite may now happen and that cars could now effectively 'submarine'. If you hit the back of the car in front square on, then you could go underneath it and end up with the rear crash structure in your face, which I think is a much worse scenario.

"There have been accidents when you also wonder if a low nose would have actually worse - like when Michael Schumacher spun at turn one a few years back and got mounted.

"It may help in some ways but not in others. It depends on the scenario, but it's not something I would say I'm in favour of. For me it's, possibly, introduced more dangers than it's cured."

Newey added that the nose wasn't the only area of concern he had, with the engineering guru also questioning the decision to house battery packs underneath the fuel tank.

"It was done on safety grounds but I am not sure why putting a battery underneath a fuel tank is safer than putting it behind the engine," said Newey. "These batteries can suffer thermal runaway through impact, through causes that are difficult to predict and once they go into that with such a big battery pack then it is very difficult to control that fire. It is probably push it in the pitlane and watch it burn frankly.

"I don't think it is a driver safety concern because you know about it in a reasonable amount of time, but it is still a danger. I think also the voltages now are very high. Large DC voltages are very dangerous, and much more dangerous than an AC voltage, so for the whole of the pitlane safety is a big challenge with these cars."