“Internal combustion engines really work at peak efficiency at one RPM and one load. Of course, this makes them pretty good for charging batteries.”
My 750 hp 5.0 has two sweet spots.
60 mph in 6th gear - 28 mpg.
Any gear at 7500 rpm.
I asked the Google:
“The Lexus LC 500 is equipped with a 5.0-liter V8 engine, producing 471 horsepower and 398 pound-feet of torque. This engine, known as the 2UR-GSE, is paired with a 10-speed Direct Shift automatic transmission. It’s a naturally aspirated engine, meaning it doesn’t rely on forced induction like turbochargers or superchargers.”