Cars? Cars where are you?

I’m not exactly sure what, cognitively, would be developing to lead Toren to do this, but it was quite funny.  Toren has obviously observed Debi and I calling out for each other and calling out for him.  We often call out for Toren, especially now that he hides to defecate and he likes playing hide-and-seek.  However, Toren does not seem to have made the cognitive leap from realizing some things can respond to calls and others cannot.  About a month ago I asked Toren to find his cars so we could run them down the car track I bought him.  What did Toren do?  “Cars?  Cars?  Where are you?”  Yep, he called out for his cars.