Tamiya McLaren M8A Extra Parts?

[Miatatom]

I'm working on the Tamiya McLaren M8A and I've run into something that's odd. This kit seems to have 5 extra parts that aren't on the instruction sheet at all. They are parts A3, A4, A11 A28 and B2. Anyone run into this with this kit?

[Scale-Master]

Could be those are left overs from when it was a motorized kit. Possibly for the battery box or motor mounting. I think there was something like that in the Lola from that series.

[Miatatom]

Thanks!