Daniel Ricciardo has a perma-smile, but that hides a fiercely competitive nature when he lines up on the grid for Toro Rosso. Peter Fox / Getty Images
Daniel Ricciardo has a perma-smile, but that hides a fiercely competitive nature when he lines up on the grid for Toro Rosso. Peter Fox / Getty Images

Smile on face of Red Bull's Formula One driver Daniel Ricciardo just a ruse