In Islamic banking ijara, bank has car ownership which means they have the risk. Second if u dont pay the monthly amount there is a penalty but the price of vehicle dont change. In interest based system bank has no risk and incase of non payment interest amount increases so total price increases.
If you wish to learn more the best resource are by Mufti Taqi Usmani sb.
Its always best to stay away from bank loan though. Personal opinion. Pray to Allah for a better arrangement.