8 Questions About the 2011 Yaris 5 Door Liftback (HELP)

[Pacquiao]

Sorry to be a pain folks, but I live in a semi-rural area with dial up connection and I tried my best to search for answers, but it took foreeeever... Some of these are general questions, too.

Will the JDM LED tail lights fit my 2011?

Is it easy plug in or is there re-wiring involved?

Right now, when I hit lock on the key fob, there are no 2 quick horn beeps (I'm used to this and the aural confirmation is very reassuring to me). Is there a way to turn this on? In my last car, I had the option.

Is it more efficient to coast to a stoplight/down hills/off ramps or rely on DFCO?

The Yaris has the LEAST ASSURING brakes I have ever felt on a new modern car! Is it supposed to be that squishy and non-responsive?

My Yaris feels like it holds its speed when coasting in neutral... In my last car, when I coasted, I gained speed very quickly. When I coast in the Yaris, even on down grades, it doesn't seem to gain speed and it takes awhile. My last car was a Versa, which was considerably heavier... I guess it's a physics thing... would a heavier ball roll down a hill faster than a equally sized lighter ball?

Will the sedan's stereo unit fit perfectly with the hatchback's? I really hate the stereo unit in my Yaris... the buttons are terrible.

I have a decal I really love and its printed in reverse to go on the inside of windows. If I apply the decal on the inside of the rear window (so my wiper can still perfectly clean away dust/rain/snow), will it ruin the defroster lines?

Thanks!