Even more folding parts!

I've added alternators, batteries, floodlights, and a folding version of the shopping cart basket (and recipe). The basket is the only one that actually gets smaller when folded, however.

On the subject of balance, I was considering adding "foldable" to motors (edit: and perhaps even solar panels) to allow them as part of carry-able vehicles, but giving them no reduction in volume for folding_volume (like batteries and alternators). Does that seem alright/balanced? I don't really see any issues, but does anyone have a problem with it?