Nico Rosberg says he is looking forward to the 2014 F1 season and getting to grips with the biggest rule changes to hit the sport for many years.

The German, who forms part of the only unchanged line-up in the top half of the grid, helped team-mate Lewis Hamilton unveil Mercedes' new W05 in the pit-lane at Jerez, just before the car his the track to open pre-season testing.

With a switch to 1.6-litre turbocharged engines complete with more powerful hybrid energy regeneration systems and revised aerodynamics, the 2014 breed of F1 car will be vastly different to any that Rosberg has driven in his previous four years with Mercedes, and Williams before that, but the 'veteran' is looking forward to the challenge.

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"I am massively excited ahead of getting in the car properly, after our short shakedown at Silverstone last Friday," he confirmed, "It's been a really intense period and I am just so looking forward to driving the car.

"After finishing the Pirelli test last December in Bahrain, it's only been a month away from the car for me and that's a positive because it means I will be up and running straight away.

"This year will be much more complex with all the new technologies, and I think it's great - it will help make the sport really contemporary. It's all focused on being more fuel efficient and using hybrid energy which, for me, is a good route and something that will make the racing even more interesting."

The introduction of new technology, however, brings a steep learning curve for both team and driver, and Rosberg is well aware of the work that lies ahead even before racing begins.

"We have three tests coming up and, as always, the track time will be very limited, so it's going to be a massive mission to get ready and reliable," he conceded, "I think we are on track, but it's going to be so difficult for all the teams and I just feel lucky because I have such a great team behind me. I am confident we can get the job done."