[TOMT] [ANIME] [90’s-00’s] Anime about kids racing with remote-control helicopters

Around 2012, I used to watch a kids channel named “Panda” at my grandma’s house (I’m from Portugal, if that helps). It looked really old and the thing I mostly remember is that there were 2 kids who were rivals and were always competing. I also think one of them had a single mother. Any help is welcome!