AXR Cadillacs overcome overheating problems to finish 1-2 at Rolex 24 0 29 Jan 2018 19:55 USATODAY (Motor Sports) Joao Barbosa, Filipe Albuquerque and Christian Fittipaldi combined to claim the victory in the No. 5 Cadillac DPi-V.R, just ahead of its sister car