Since picking up my new (inventory) MS100D, there was a chatter in the brakes that got more pronounced at higher speeds. It felt like the rotors needed to be resurfaced/replaced, but the car only had 4k miles on it. I continued to drive it and at 6k miles it only got worse, so I brought the car into service on a Monday. They texted me shortly after saying they were going to replace both front rotors and that they needed to order the parts. The parts did not come in until Thursday night which really surprised me - a Service Center doesn't keep rotors in stock? Car should be done today. Also - what is going on that I need new rotors at 4k miles? I'm used to getting at least 30k miles, even with city driving, out of pads/rotors. If this car was out of warranty and I need to get rotors every 4k miles I'll have to get rid of the car. There was also a rattle I asked them to look at. Electrical Question: I made plugs for all possible scenarios (10/30, 14/30, 14/50 etc.) because this is my only sedan. I cannot seem to understand what the "40-amp electric range" plug is. It's labeled as either a 3-prong or 4-prong (depending on existence of ground), and as 40-amps. However, the 3-prong plug appears to just be a NEMA 10-30, which is 30 amps, and the 4-prong appears to just be a NEMA 14-50, which is 50 amps. What is the electrical stove plug/receptacle referred to as 40-amp? The plugs look identical to 10/30 and 14/50. There doesn't appear to be any NEMA designation that is 40 amps. What am I missing?