If you want stuff like this go to
http://www.yankodesign.com/, they have tons of awesome concept things, and the artists behind it all actually LOGICALLY explain and do research on their material.

sky ambulance, quick response

new Ferrari that uses jet-intake style for engine and looks like it could cut you in half just by touching it

Tires that when worn down, display a bright color so you know it's time to change them. This is not only a safety feature, but allows better mileage.

Flying balloon house, no real perks, just looks neat, can move, not a lot of info present

USB drive with USB input slots aka you can plug a USB
INTO the USB (or create an endless chain)

Keys all in one.. key? Allows you to keep all your important keys in one spot (however that means if you lose it, you lose ALL of your keys.)
Seriously, whenever I start to doubt whether or not humanity will end itself, I go here and get a
LITTLE hope back.