(Just a random suggestion for anyone who likes the idea...)
Lightweight, low cargo capacity vehicle with speed approximating the minibike's.
If a charging station is too difficult to make, then manually swapping the 6 batteries to a bank connected to a generator would work fine.
A solar mod would allow you to run off the sun (or recharge) during the day, but would require costly solar cells to craft.
I don't know if it'd be possible, but would be fun if the runtime of the vehicle was based off the quality of the batteries in the vehicle's bank, so 6 brown batteries would work, but not go very far without charging. Same thing for the solar mod...better quality cells would offer better charging. Reduced charging due to weather would be a bonus!
Disclaimer: I'm not a RL fan of EV's, but can see a place for them in 7D2D!
-Arch Necromancer Morloc