ET revisits rare moments with young Barron Trump, in a penthouse tour with parents Donald and Melania in 2010. At the famous family’s New York City home at Trump Tower, the then-4-year-old drives around clearly one of his favorite toys at the time, an electric-powered Mercedes that bears the license plate letters: ‘B-A-R-R-O-N.’ The little one’s Slovenian accent is heard throughout, as Barron poses for pics alongside his mother, father and high-end stuffed animal collection.