Long-term loan agreement

Hello! I have a vehicle that I currently don’t need to stand in the garage. I don’t want to sell it, but it’s too bad to stand around. I want to lend this vehicle instead to a good friend who would drive it for 1.5 years. But I’m staying with the vehicle at any time, as I may continue driving it myself afterwards. I would, however, conclude a loan agreement with my friend that limits the km to be driven, the period and the wear and tear. . My real question: Can I simply register my friend as a second driver on my insurance and am on the safe side? Or do I have to consider something else, e.g. because he does not live in the same city or he compensates me for the cost of the vehicle (no profit!)? Did someone have similar experiences? Thank you in advance!