Complex sentence: His son then took the car out for just 2 laps while Louis cleaned up and ate some bananas, before he got back in, resuming in 3rd, and driving for the rest of the race.
Split into simpler sentences: His son then took the car out for just 2 laps while Louis cleaned up and ate some bananas. Then Rosier Sr got back in, resuming in 3rd, and drove on for the rest of the race.