Motorized Tomica World cars advice

[Super]

My thoughts exactly when I bought several of these and anything else that comes with batteries already installed. I have left all the new ones I have in their package but I have duplicates of those and more that aren't in their packaging to play with. I really don't understand why manufacturers of anything, place the batteries in the compartment while packaging. If they want to include batteries its much better for them to be separate, wrapped in plastic. If they aren't going to do this then I would prefer them not even including them