if you do this I will murder your face.

Landau roof:

Pretty much any variation on this theme.

anything that resembles this monstrosity...please dont do it or I'll be forced to have you drawn and quartered.

hello kitty exhaust pipes on a ferrari.

The question said "worst", not "best".

House paint.

Excessive camber and Stance.

I hate these things... what's the point? I don't drive any safer around those cars than I do any other car.

Those clear bras.

Bumper Protectors

Hands down.

Follow the head in various angles, you'll see what kind of speed it carries as it travels towards the pillar. No impact is shown, but at around 43 second mark you can see it eventually would hit the pillar. I'll go check if there is any mention about it in Euro NCAP report.

And then what happens if you decide to do an aftermarket chip/intake/tune on the M4?

NP because its not a fucking Cimarron. Things can always be worse.

Screwdriver key. Look like you just jacked the car!

I always thought the 60's VW keys elegantly incorporated the logo into the design of the key. Not flashy, not complicated, just simple, memorable and clean.

I am surprised that no one has really connected the dots yet in the sense that the mustang keeps drifting towards the most recent pre-retro mustang.

"WE'RE SO EXCITED!!"

Not quite; my bet is that a base C7 would likely be able to overpower the hell out of the 4C and outrun it in every meaningful way.