Shortly after getting my 911 I bought the oil temp gauge that has real numbers, and not vague markings. Later when I had me steering wheel redone by Dallas Steering wheel and the car was kinda un-driveable, I sent my tach in the have the voltage meter added. It is very comforting to KNOW whet the alternator is really doing. The photo is one that had someone asking about the headlight washers, so I pointed out the switch. Hard to believe that was 15,000 miles ago.