If the car is bought for personal use, it is smart to pay cash.
If the car is for generating income (e.g. car rentals or taxi), try
to loan 100% if you can.
Sad to say, most car "lessors" pay high interest on liability with
depreciating values. These car "lessors" never own the car, they
bank did 
Stupid people like newcomer actually think it is smart to buy car
on loan 