High energy costs and growth in emerging markets have automakers scrambling to downsize their product plans, and ultra-small transportation like the VW up! is bound to bring low-cost city cars to the masses. Mazda intends to be a serious player in this burgeoning segment and will unveil the Mazda1 concept in Paris this fall, expected to look like the sketch above and influenced by the Nagare design language.

Click above for a high-res gallery of the Nissan Cube.

Let's just get this out of the way right now: this blogger is going to buy one of these cars when they come to America. And I'm a die-hard 385-plus-horsepower sports car owner for years now. And I live in LA. But the Cube is just that great. So Nissan, don't pull a bait-and-switch, please...

Click above for more high-res images of the Toyota iQ