... when you go for a ride in your friend's new 6-speed manual Subaru BRZ and your 3rd question is...
"Does it have a fuel economy gauge?"
Her lifetime average after a few thousand kilometres: 7.9 L/100 km = 30 mpg US.
Not bad! Considering the EPA rating is 21/29 24 mpg US combined for the manual, that makes her a hypermiler! The automatic is rated 28 combined, but I'm sure the manual would beat it.
And she doesn't baby it - she turned the traction control off and got it a little sideways through a wet S-turn on an empty country road. (And she's one of the only other drivers I know who can match-rev downshift).