Mordasky's right. Unfortunately. The plastics on the B&W are a different composition of plastic than the latter G4's which were a clear polycarbonate.

Now, if you wanna shine those plastics as much as possible (which may not be much) go after them with a 1500 and a 2000 grit sand paper. then, if you have the ability, a buffer and some turtle wax brand rubbing and/or polishing compound. All can be found at the local auto parts store, should you decide to go after it smile
Electricity tastes good. No, seriously.