Liquid air motors for cars : Flintstones fantasia or real clean power ?

This is a nice article to click on : Pioneering 'liquid air' project can help store excess electricity

A liquid air tank in a car is probably safer than a gaz tank or an LPG tank but is it feasible ?

Injecting the liquid air in a standard combustion motor may seem plausible but let us think about it ...

The cycle of the strokes will be different.

The inlet of the air under pressure will drive the motor and the compression cycle will need to push the exhausted air out.

But do we need only 2 strokes then in a liquid air motor ?

So we get all the advantages of the traditional 2 stroke combustion but without any internal combustion in the motor ...

And the exhaust pipe will only see decompressed air flow ...

Will the motor not freeze from the decompression cycle ?

How can we keep it warm ?

Will we need an warming radiator to take heat from the atmosphere ?

Can the traditional cooling radiator of combustion motors do this for a liquid air motor ?

Or do we need a complete new motor for this application, like a turbine ?