Ford focus tdci how to make it look good?

Gettin a focus tdci 04 black 3 door
Just wondering how can i make this car look a bit COOLER i'm changing the muffler even though its a diesel to make it a bit beefier, might add a dumpvalve, new speakers, subwoofer and amp,
What else can i do with this car

Need advice and help deciding what car I should get next that gets 27 or better mpg in the city?

I'm looking at getting a used car that gets 27mpg or better in the city. I want a car that is safe, comfy, reliable, has decent powder (won't be slow getting onto the highway) and isn't know to have major problems or any problems at all. Iv been looking into the 2012-2014 Honda civics, 2012-2013 Hyundai elantras, 2013 ford focus, 2013 chevy cruz and the 2014 Mazda 3.
What's your opinion on what I should get from what I'm wanting in a car?
Need all the advice and help I can get.

Having car issues. Any ideas of what it might be?

For almost the last month I've noticed my car (2002 Ford Focus) has been making an odd grinding sound on the right front side. I had the wheel bearings changed about two months ago on both sides.

I've noticed the last week or so though, that, that grinding sound has moved towards the middle of the car in the front. I notice when I drive straight, accelerate, and reverse when the wheel is turned towards the right.

Today was the first time I heard this really loud humming sound coming from up front while I was parked. I recently have the oil and oil filter changed. But I have also noticed by MPG have dropped as well.

I know it's hard to determine what it might be by just words; but would anyone have any idea of what it could be?

How to know if your struts are bad?

I have a 2009 ford focus I had to change the front struts a few years back because i was ran into a side of a curb really hard. Anyway My car as been making a shaking noise for he past few months, i thought it was because he had to be realigned but I think there could be a bigger problem. Also there as been no excessive bouncing, noise dives, or leaking… What else could this be?

Will 16 inch wheels and tires fit on my 2014 ford focus titanium?

The wheels size that i'm wanting to get is 16in with p215/55R16, which is the same tire that fits on the se model of that year. Right I have p235/40ZR18 on it. I called the dealership about it and their like oh probably not because it might hit against the brake caliper or and it'll also have to be recalibrated because of smaller tire. Well I feel like it's not going to have to be recalibrated because it's going to be a bigger depth tire.