Given that the 2015 regulations are very similar to last year's, it will be a case of evolution rather than revolution in Formula 1.
But that does not mean that there is not potential for teams to make some big strides up the grid - and slide down it if they get things wrong.
The most obvious visual change will be to the noses thanks to regulations designed to make them more aesthetically pleasing. Beyond that, everything will be about refinement of existing concepts.
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