Gaara wrote:Please someone can explain this to me?
Can teams use 2015 PU in Australia and still be able to develop them? If yes, then why some teams talking about using 2014 version in the first few rounds?
Each engine manufacturer viz. Ferrari, Mercedes and Renault have 32 tokens available. With each token, they can change one of the 66 parts allowed by FIA in the 2014 engine.
As per the current rules, an engine manufacturer can use X number of tokens - lets say 10 tokens to change 10 parts in the 2014 engine. It can then homologate this engine with FIA and introduce it at the first race. What this means is that till of end of the season this engine manufacturer will have balance 22 tokens using which it can introduce engine upgrades.
Alternatively, a engine manufacturer may decide to start the season with 2014 engine and use 32 tokens to introduce upgrades as and when they wish to.