BMW is using technology originally developed for its autonomous driving systems to help Olympic swimmers scrutinize the minutiae of their form and technique to improve performance. The same LED lights BMW uses in its cars to identify pedestrians and other vehicles are put on swimmers’ limbs to analyze different elements of kick and pull. The LED-based software package helps Team USA coaches provide instant feedback to swimmers like Michael Phelps. The software, along with a new racing wheelchair BMW rolled out for the Rio Paralympics, are among the technology initiatives BMW is showcasing at this year’s Games.