IMHO, AdrianM is correct. There will be complaints on here about the pace of brushless development, the cost and how unfair it is that people are getting blown away by the factory teams. It will be even worse in Stock if anyone makes a rule trying to get the same motors into the same race (BL and BR) as the pace of development will be fast - and expensive!

When BR was developed for Stock, it was the same thing. There was a time when to keep up, a new motor every three months was the order of the day. However, it is true to say that this development was much better understood because it was all brushed, and we understood what to do with them. With brushless, people will get left behind, because of the software element, and the use of hall-effect switches on the sensored motors, and the possiblity that sensorless would be a viable option for Stock.

Personally, I am staying away until it all settles down in a couple of years. I'm often an early adopter (CDs, iPod, Mac, etc.) but those are once-only buys. With BL, it is a perpetual buy, buy, buy, until it settles down. In this case, I'll be a laggard and have some money in the bank!!