Generally speaking, a bigger (ie; V6) engine or an engine that is turbo- or supercharged, along with bigger sway bars and stiffer suspension, are necessary turn a grocery getter into either a sports sedan or a sports coupe. Without these upgrades, a sporty-looking compact or sub-compact coupe is considered just a grocery getter.
bernard: why do you need an escalade? you have no kids. all you would be doing is getting the groceries.
matt: dude, wtf? the costs outweigh the benefits.
bernard: your wife is so dumb just like all the other grocery getters.
"What is up with Anne-Marie? She was zipping around in her grocery-getter all jacked up on something this morning... nearly ran me over, dammit!"
Used car sales guy: So we have a nice selection of mini-vans and station wagons over here you might like in your price range.
Woman: Those are alright I guess. Ooh, I like that silver Toyota Sienna! Can I test drive it?
Guy: Sure...a more fancy grocery-getter if you will.
Woman: Uh, yeah (rolls eyes and sighs). You know I'm not a mom and I'm not married Mr. um...
Guy: Just call me Larry.
Woman: Right. On this test drive try not to talk. You already put your foot in your mouth as it is.
Yo! Mah Audi S4 I haz supercharged with everi mod possible...it run 109 mph in da 1/4...shit is da fastest thing on da road! (grocery getter)