These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Starlight Express
Accidental Innuendo: In the "Lotta Locomotion" number, Buffy (the buffet car) invites the audience to "come and bite my burgers." Uh, okay, Buffy....
The full verse, for reference:
Buffy at your service, ever open wide. My microwave is cooking to warm you from inside. A lotta locomotion will do the trick— Come and bite my burgers; I'm hot and cheap and quick.
Cargo Ship: Technically, all the relationships in the show. They are toy trains.
It's also worth noting that the show is far better known and more popular in the UK and Europe than it is in the US. It's a fairly obscure musical there.
High Octane Nightmare Fuel: C.B., once you figure out that he's a goddamn serial killer who hasn't ever been caught.
Unfortunate Implications: All the engines are male. Some of the show's detractors were hyperfocused on this discrepancy. (The all-male freight trucks, who seem to be more disadvantaged than either the engines or the coaches, mitigate the circumstances somewhat.)
It's worth noting that for a small time in the London show the swing for Electra was in fact female.
Visual Effects of Awesome: From the unique rollerskating to the innovative set design with race tracks laid out around the stage and the auditorium. All of this makes Starlight Express an unforgettable experience.
Why Would Anyone Take Him Back?: Dinah accepts Greaseball, who's cheated on her and is implied to beat her, back into her life at the first opportunity. (One might also think the same thing about Rusty accepting Pearl's apology...)