Grails Criteria projections on joined table

I have an issue with grails criteria builder, I want to do a projection on a column that is on a table that is in one-to-many relation to parent table example:

Car.createCriteria() { 
   projections { 
     property('name') 
     property('wheels.name')// ???? 
   }

   join 'wheels' 
   //or wheels {} ???
}

or something similar exist? I think it is basic propblem with aliases