That "new" size lipo is a great idea, who needs 6000+mAh anyway when racing 5mn mains?
I don't know for you but it feels a little like cheating to me. Don't get me wrong, I know a smaller than standard lipo is allowed by rules, but seeing alternative manufacturers (X-Factory, AC) reinventing the wheel to have the best mid motor layout, only to find Losi basically creating a new cell standard for their new car... it feels somehow unfair.
(Sorry if the above is not very clear, that's too much english for my skills I'm afraid

)
It opens a whole new field of possible layouts, bring on slim cars! Kudos for that