sentences:  Thus Nissan would be forced to race with only a single R391.During the race, the remaining R391 was able to climb its way up the field, running as high as 4th overall before an electrical problem in the engine caused the car to be retired after it had completed only 110 laps.Nissan's remaining entrant, their Courage chassis with the older Nissan turbo V8, was able to survive the race and finish a respectable 8th overall.