How Many Motorized Road Vehicles Are There?

[Super]

I can't speak for other country's but the 'N' batteries are readily available in the States and not expensive like this set of 2 Duracells on Ebay Duracells plus I have found that about half of the motorized vehicles us AAA's. I would also assume that the 'N' batteries are also easy to find in Japan as I wouldn't think they would create a vehicle where the batteries are hard to find in their normal market.