Based on National Land Survey data I would say that Alatalo https://www.openstreetmap.org/way/1062769194 is accessible by car via Kuorevaarantie https://www.openstreetmap.org/way/29006552. From there (Alatalo) on towards north you might probably need a motor vehicle more suitable for offroad use. I updated the data in this area and connected some of the unconnected highways. I guess that's enough for you "linting project"?