If you want to add a little more fun to the walks you take your baby on, or you simply want to add a little speed to your stroll, then take a look at this design by Valentin Vodev.
"The transformation to a scooter occurs through a simple pull of the lower body, thus extending the buggy," Pure Austrian Design wrote. "The scooter opens up new possibilities to the common use of a baby carriage, meant for people with affinity to fast moving means of transportation with the child."
It's safe too, so don't worry about it. It's a great transportation method, and can be used on a number of different terrains... as long as you're traveling at a moderate speed.