Why doesn't my car start?

I bought my in October of 2014. It's a 2011 Ford Fusion. I had no problems with my car until I went to start it this morning for work. And it didn't start! No sound, nothing! It's completely dead. No engine light went on the day before or ever. I looked at battery and it's fine. It's a new battery. So what's going on?

2010 Ford Fusion mystery annual battery drain. What is killing my battery?

2010 Ford Fusion mystery annual battery drain. Last year I found my cars battery had died. I took the battery in and they charged it and tested it and told me it was good. I stuck it back in assuming it had to be the alternator and my battery would soon be dead again, but no it didn't die… Til a year later it happened again last week. I took it in they charged and tested it and said it was fine. I stuck it back in and it has been fine for a week now. What is going on? No lights were left on. The only two commonalities are 1 it was around the same time of year. (a/c?) 2. I had an male-male audio cord plugged into the aux. (nothing attached unless I was driving) from what I heard that does not draw power.

Has/does anybody own any of these cars?

Has/does anybody own any of these cars?

-Nissan versa
-Ford focus
-Ford fusion
-Kia optima
-Chevy cruze

what is the gas milage on it and what kind of payments do you make a month?

What a transmission service involves?

I have a 2007 ford fusion. Have had zero issues with it. Out of nowhere, about 3 weeks ago, I got in my car and out of nowhere the service light came on and it was tatted shifting Really hard. Took it to a friend, thinking it was the transmission. He checked the transmission fluid, it was black. Took it to a transmission shop, turns out it was an oxygen sensor, but they also did a "transmission service" because the fluid was so dark. 3 weeks later I take it for an oil change, fluids black again. No symptoms of anything wrong, no shifting hard… Just trans fluid that keeps getting dark. Any ideas?

Grinding Noise On 2014 Ford Fusion?

Grinding Noise On 2014 Ford Fusion?

Added (1). 2014 Ford Fusion Hybrid with 62k miles

At low speeds I hear a grinding noise.
kind of like a "GHHHRR GHHRR GHRR GHHRR…"
This noise gets faster with speed

My brother who's a mechanic says its my brake pads. I sort of get the feeling that a set of brake pads may be stuck or misaligned, is this possible?

A reputable dealer says "cars like this don't need brake work until about 80k."
(Cheap pads?)

Ford has a special for brake work $169 per axle. Is this an ok deal?

Is it hard to do?

2015 Ford Fusion vs Chevy Malibu?

I been researching on both and can say that the ford fusion has a better interior than the Malibu but I know very little about cars. Therefore I asked advise from family and they have said that the Ford Fusion has a lot of defects and problems. Anyone had either of the two and can give an honest opinion on them?