Just discovered something that I feel is cheesedick as fuck. (overpowered)
At some point, they changed it so that you cannot use standard batteries to recharge a vehicle battery. I was irritated in the extreme at first because I believed it would make vehicle system built turrets impossible, until I realized how easy it is to build a battery charging excersize bike. So I attached a second frame to my kitchen along with several batteries, a car alternator, a bike saddle, and a set of foot pedals (no wheels, it's meant to be stationary.) To my delight, in the space of 20 tics I managed to put a 2% charge on the bike. Then, on a whim, I decided to make a serving of bone broth with my now powered kitchen unit without releasing control of the bike. In the time it took to make the broth, I managed to put another 25% into the battery at the same time as making the broth.
Side note, vehicular turrets will never fire at you making them superior to normal turrets. Just have to keep them charged.