Yokomo MR4-BX Factory Kit
Yokomo have announced the release of a Factory version of their higly successful MR4-BX that comes pack with loads of nice new optional parts. Whats different between the Factory version and normal, previously available, version is that this comes with a new slick looking bodyshell for better overall stability, improvements to the drivetrain (my Japanese isnt good so hard to be specific), new harder material drive shafts, new drive belts, a new rear upper deck, coated shock absorber pistons and more. As far as i understand its available now.
Source: Yokomo [teamyokomo.com]