"Racing cars" should be accepted, as this is what they are commonly called in the U.K.
How can I know that "meget" refers to "huritge" and not "racerbiler"? I thought there are many race cars which are fast instead of race cars which are very fast
The difference is between "meget = very", and "mange = many".
"Many fast race cars" translates as "Mange hurtige racebiler".
Hurtige = hurry/fast?
Udtaler den mandlige person "racerbiler" på den rigtige mode?
Race cars sounds American, which is fine; but why does Duo tell me I'm wrong by writing 'racing cars'?
It's not wrong. Did you report it?