English to Chinese Medical Medical: Health Care medical transportation

This can include: ambulance, {litter van}, wheelchair van medical transportation services, and coordinating with para transit.
The forms of transportation are authorized when:
- Your medical and/or physical condition does not allow you to travel by bus, {passenger car}, taxicab, or another form of public or private transportation ...

原文是有关可以给老年患者安排的医疗交通服务，提到了可以安排的各种车辆。这个Litter van具体指什么呢？

从Google到的意思看，似乎有点像中文说的“面包车”？而按照https://en.wikipedia.org/wiki/Litter_(vehicle)，Litter相当于“轿子”，那Litter van是“轿车”吗？

另外，与此向区分，后文那个“passenger car”只能译作“客车”了？