85% of Americans own smartphones...nearly evenly split between iOS and Android....as long as they have Car Play, Navigation is only needed by 15% of Americans. My wife's factory nav (2016 Mazda 6) is no longer updatable and is useless.
As far as Sirius XM goes...you can get that on your mobile...
THe Prius engine is an Atkinson Cycle engine as well. The valve timing and the actualization is variable. Ford licensed this tech from Toyota...theirs works identically...and I am a former (retired) toyota factory hybrid tech. They will see 13:1, not all the time...but they will.
My point is...
Read the owner's manual...13:1 is the static compression. The factory specs 0w20 full synthetic oil. Weight for operational economy and synthetic for durability and shear strength.
Synthetic isn't about racecars. It's about service life and durability. Turbo Motors run hot...the 2.5 has a 13:1 compression ratio. Good luck with a warranty claim if you're not running factory spec fluids.