The sleek four-wheeled carts look familiar, but not even the delivery giant knows what it is.

The cycle, powered by a battery, will be able to haul cargo in some of the world's most congested streets. The company wants to be carbon neutral by the end of the century.

The vehicles have a gold-colored logo and stripes on a brown background. The company calls it the e Quad.

Ian walked over and looked at it.

He said it was funny but it was good for the city.

The vehicle was called cool by Mohammed Islam.

If big trucks block the traffic, it will be better for everyone.

One of the company's more traditional delivery trucks rumbled through traffic and drew the ire of motorists trying to get by parked trucks on narrow streets.

Delivery companies have tried a lot of different delivery methods. There are more than 1,000 electric vehicles in the company's fleet.

A trial run is taking place in New York City.

Nicole Pilet said that New York is a complicated city to work in. If we can do well in the city, we can see how we can do well in other cities.

The first deliveries were made by foot or bicycle when the company was in Seattle. The company's motorized fleet did as well.

Dyghton Anderson is an avid cyclist and is helping pilot the program. It is pretty comfortable for me to ride to and from work from all over the place.

Bobby Calvan is a writer for the AP.