That comment by Mayu at the end about the GPS and Meiko’s reaction tells you all you need to know, that them's fighting words Mayu has for Reiko!
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Producer seemed to be late for his next job, so I just gave him a little ride.Ara, you're right.Ah, the gas seems to be running low, so please bear that in mind.You'll make a good wife.Mayu wants to know absolutely everything about Producer-san...Also, I can get a sense of the car's mileage from the GPS...Nothing.Cinderella Girls Theater
Episode 97: 何でもしってます♪ / I know anything♪
Producer-san was in this car before, right?...eh?Mayu-chan, you're very observant.Really?What are you implying?Mayu-chan, you seem really devoted.