This is the question that I get from Jacob every time we are in the car. Most days, multiple times. He is so fascinated with cars that he has now learned many of the cars he sees on the roads. He knows the symbols for just about all the car companies and has learned many of the models of cars as well. These are some of the cars he knows:
Hyundai Santa Fe
Lexus (the numbers are too hard still)
Ford Escape (Can't tell the difference between the regular and the hybrid :))
He's now working on the cars. I'm sure he'll know those soon too. He's even taught Kyle a thing or two!