Regardless of what mode it is in, your right foot is the biggest variable when it comes to fuel economy.
I realize we are almost 40 years apart in technology, but my 1983 BMW 745i (factory turbocharged gray market car) only gets 24 mpg. I probably have close to 500 lb. ft. of torque (been modified a little) but because I limit my boost to 10 psi (kept breaking driveline parts at 15 psi) I doubt I have even 380 hp at the flywheel. Impressive for a 1983 car; today... not so much.
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Don't believe everything you read on the internet ... Ben Franklin
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