Dear all, how to get two cars in breve?

Dear all,

I am not familiar with Python and steve,
but I know JAVA very well.

Here is the code for one car:

vehicle = new BraitenbergVehicle.
self watch item vehicle.

How to get two cars in breve? or three, four, five cars?

can I build it in list? How?

Thank you for helping.

Cheers,

ruther.