4 DC Motor with IR

Is it possible to use two L293D, and one Arduino Uno to controll 4 DC motors with infrared?

The L293D has two H-bridges, and can control TWO tiny toy motors (<=600mA).

A common/cheap "v1 motor shield" that you can plug on top of an Uno has two L293D chips.
There should be enough pins left to do other things.
Leo..