Ferrari's early runs in the simulator have shown that drivers will have to adapt to a new style of racing this season.
Not only is Formula One swapping from 2.4-litre V8 engines to 1.6-litre turbocharged V6s with ERS but the sport is also limiting the amount of fuel per race.
As of this season, drivers will be permitted a maximum of 100kgs of fuel for each grand prix, about 60kgs less than they used in 2013.
And that change means managing fuel economy will be vital.
"[Fernando] Alonso has been to use the simulator and it has been interesting for us," Ferrari technical director James Allison revealed to Autosport.
"Fernando gave us some important feedback and details...
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