This was a previously popular deal about a month ago that ran out of stock. This vehicle seemed to have the best reviews out of all of the Power Wheels. It has 2 different speeds and 12 volts. My understanding is that it is easy to add higher voltage batteries to make it go faster therefore making it more enjoyable for your kids through a wider range of ages.
I also read that since it doesnt have a dashboard it makes it easier for larger kids and even smaller adults to fit.