Jaunty-3W's unique design and functionality have caused some to wonder if it could be the beginning of a new category of urban transportation vehicles. These are "micro-mobility" solutions that may fill the gap between bikes or scooters and larger personal vehicles. Proponents contend that such vehicles would help alleviate traffic congestion and pollution, and make available more agile forms of transportation for different users. But critics wonder if it's wise to add another category of vehicles onto already crowded urban streets. Debates rage as to what infrastructure is needed, whether the vehicles are safe, and how they would fit into existing transportation systems. The paper also discusses how these vehicles might influence urban planning and design, as well as public transportation usage.