After doing pretty good with the high mileage '17 Corolla iM last month, I won this '20 Hybrid online today. I've had a first gen Prius 15 years ago, but no Toyota hybrid since. Anything I need to know from those that are more familiar with it? Assume it uses 0W16? Does it use Li batteries or Ni? What's the difference between this and a Prius, i.e. why does Toyota make two compact hybrid sedans?