Now There's a Tesla for Kids Radio Flyer making a $499 model By Newser Editors, Newser Staff Posted Feb 16, 2016 1:03 PM CST 14 comments Comments The Radio Flyer Tesla. (Radio Flyer) (Newser) – The newest Tesla tops out at 6mph. That's not a mistake: The company has teamed up with the wagon-makers of Radio Flyer to create a battery-powered Model S for kids, reports ABC News. If parents think 6mph is too fast, they can cap it at 3mph. The basic model sells for $499 here and begins shipping in May, but this being a Tesla, all kinds of upgrades are available. Indoor car cover? Check. "Silver Turbine Wheels"? Sure, why not. Those who indulge in all the extras will wind up paying about $800, notes TechCrunch.