GTA FIVE(V) secret car locations

GTA 5 includes a huge assortment of Vehicles loosely based on real-world cars, planes, boats and more. There are a total of 257 vehicles divided into a total of 21 different types. Some cars are hide on the map so,let's find them.
1. Inferus(440.000$) location:

 

2.Dumper location:
This locations is not very exactly,so fly around here and maybe you can find it.

 

3.Rod Loader location:

4.Tractor location:

This is it. Have a nice day.