Bank: the money will be paid into your account as a single lump sum. The car will become your property immediately upon purchase.
Dealer: you often purchase the car in instalments, paying part of the purchase amount in each instalment. The car only becomes your property once you have paid all the instalments.
Private lease: you make monthly payments for use of the car. This often includes insurance, maintenance and repairs. The car remains the property of the lease company.