Both cars have the same chassis ( designed by Adrian Newey ) , but Toro Rosso STR02 uses Ferrari engine while Red Bull RB03 Renault .
New aero parts and wings are usually first presented by RBR03 and then are inherited by STR02 .
Between the two cars there had been a significant gap in performance , in favor of RBR03 , but seems in the last few races that STR02 has finally managed to close this gap .
MIRRORS
RBR03 changed mirrors position after Bahrain race