Images: The 21st-century taxicab

In this design, a passenger in the backseat has more to look at than a copy of the cabbie's hackney license. Other ideas for the inside of the taxi include a built-in baby seat. New York taxis will celebrate their centennial in 2007.

On the exterior, lights give a better indication of whether the cab is in service, and whether the passenger is stepping out into traffic. The Design Trust sees the taxicab not just as a vehicle, but as a public space.

At least one designer thinks it's time to scrap the yellow paint.

Leg room is key in this design, but this one might be a little too open for the cabbie's comfort.