BMW 3.0 CSE

There are 350 DC volts of Telsa LiIon batteries in my car but I need a 12 volt source to kick off the electronics that energize all the complex systems such as the precharge controller and traction contactors.  Therefore, I use a small LiIon 12v battery designed for a motorcycle.  The problem is, I keep some things, like my Raspberry Pi gauge computer constantly running so that everything works instantly at the turn of the key and that drains the little 30 Ah battery pretty quickly, like in a day or two.

In my humble opinion, the BMW coupes were designed for thin chrome bumpers.  That's how they were originally drawn and built in the guise of the late 60s 2000 CS coupes.  When the larger 6 cylinder engine was installed, BMW put rubber strips and bumper overriders onto the bumper, ruining the clean look.  Even worse, US safety requirements forced BMW to pull the bumpers out away from the body to absorb 5 MPH bumps without damage.  Practical perhaps, but ugly.  Butt ugly.