The sleek four-wheeled carts look familiar enough, but not even UPS knows precisely how to describe what could be the delivery giant’s latest way to get packages to your door.

UPS unveiled Tuesday a battery-powered, four-wheeled cycle to more efficiently haul cargo in some of the world’s most congested streets and to reduce its carbon footprint. The company is trying to reach carbon neutrality by 2050.

The slimmed-down vehicles don the company’s gold-colored logo and accompanying stripe on a dark brown background. But the “eQuad” — as the company calls it — garnered amusement from passersby…

The pedal-powered vehicle was dwarfed by one of the company’s more traditional delivery trucks, which rumble through traffic and sometimes draw the ire of motorists trying to get by parked trucks on narrow streets…

UPS said a trial run is focused on New York City and in several cities in Europe.