The Taga's intended to be more convenient than just a stroller because it allows parents to go farther with kids when they leave the car at home. You don't have to lock it up--just transform and push it into a shop, restaurant or elevator. Your kid can keep napping all the while. You can also use it as a jogging stroller.

As a trike, the three wheels add stability (there's also a five-point harness for kids), though they would seem to make the Taga, at 28 inches (0.71m) wide, rather large for crowded or narrow sidewalks. Also, in stroller mode, it takes up quite a bit of space in places like cramped stores.

The Taga has an aluminum alloy frame; front, rear and parking brakes; three-speed internal hub gears; and a cargo basket. It weighs 44 to 64 pounds (20 to 29kg) depending on the configuration. That's more than double the average stroller weight.

Still, it's a handy, zero-emissions ride that can increase your range and, maybe, fitness level. Options include an extra child seat for the middle of the bike, rain covers, and shopping baskets.