A new ride-hailing startup that offers free trips in electric limousine-esque golf carts just launched in Arlington.

Sprynt, which began running Wednesday, allows users to request rides to their destinations through an app like that of Uber or Lyft. But the transportation component is only half of the company’s model; it doubles as a tool for other businesses to promote themselves.

The startup’s free ride service provides an environmentally friendly way to travel short distances but doesn’t…