We are staying off property in a few weeks, and would like to have my sons do the mouse boats if possible one day (we will have a rental car.) Do they still rent them at Downtown Disney? I looked and I think they are maybe called star raycers now? My sons are 9 (100 pounds) and 12 (150 pounds.) Could the 12yo drive the 9yo? Or would I have to take them separately? Does anyone know the current price? Thanks for your help.