Jeremy Clarkson has been accused of "fabricating" the danger he was in during his recent trip to Argentina.
The crew had to leave the country after a Porsche with a number plate which appeared to reference the Falklands War angered locals.
It was reported they feared they were going to be stoned to death.
But Argentina's UK ambassador Alicia Castro claimed Clarkson had "fabricated an exaggerated story".
An Argentinian Falklands War veteran has told ITV News a number plate on a car used by Top Gear appearing to refer to the 1982 conflict is "not a coincidence".
Earlier, a BBC spokesperson insisted the registration plate - saying H982 FKL - was a "very unfortunate coincidence".
But Ernesto Alonso, a president of the Malvinas Veterans Centre, disputes the claim, saying: "This is not a coincidence. The programme has a history of doing this. It wasn't by chance.
"I think they need to apologise to the Argentine people - we're a peaceful nation.
"Unfortunately it has produced this reaction from the Patagonian people and the Tierra del Fuego province - which is after all the capital of the Malvinas [Falklands]."
Footage appears to show the moment protesters throw stones and hurl abuse at the presenters of Top Gear for "mocking" the Falklands War.
The Top Gear team faced angry protests after using a number plate that appeared to reference the Falklands War.