Even though the Description and Source fields are not compulsory we recommend that you complete them since they are useful reminders when you come to reuse the vehicle at a later date.
For Vehicle Type, you can select from a variety of steered vehicles, an aircraft or a tram. The Tram vehicle type is available only if you have purchased the Rail version. Likewise, if you have a licence for only the Rail version, Tram is the only available vehicle. Your selection here affects the data you have to supply in later panels of the wizard.
For the Number of Units, a unit with a drawbar front axle is regarded as a single unit.
From this panel, you can click Advanced to go to the Vehicle Details dialog, and click Next to go to the next page.