Roberto Guerrero Argo F3 Argo JM6 . This is Roberto Guerrero on his way to victory in Round 2 of the Vandervell British Formula 3 Championship @ Thruxton on 9th March 1980. Photo and info Jonathan Ranger Argo JM6 . This is Roberto Guerrero on his way to victory in Round 2 of the Vandervell British Formula 3 Championship @ Thruxton on 9th March 1980. Photo and info Jonathan Ranger about Roberto Guerrero