the project looks great and i'm still not understood how it works ?
what is the benefit if i invest my money in this ICO ?
I would assume just like every other ICO, you wait for the value of the token to increase in value as demand for it grows
DAV Tokens are not only for holding:
"Users in the network will be able to request autonomous vehicles with the DAV token to get a ride somewhere or pickup and deliver a package. Providers of vehicles and charging stations for autonomous vehicles can also earn additional income for these services through the issuance of the DAV token as compensation for these services."
From DAV: Decentralized Autonomous Vehicles
https://medium.com/@cryptojudgement/dav-decentralized-autonomous-vehicles-50b9b5362e62