Is it permissible to purchase a car from a company by paying 50% of its value now, with the other half remaining the property of the company for three years, after which the remaining amount is paid without interest?

This offer is a lease-to-own contract, which is permissible if the lease contract is accompanied by a promise to sell or donate after the full rent has been paid. Non-operational maintenance, spare parts, and insurance must be borne by the owner, and the lessee is not liable for the leased asset except in cases of transgression or negligence.