Some possible slogans for Sunshine English Pit-stop:

Home of English-on-a-Stick!

Clean Petrol and Clear Pronunciation at Popular Prices!

English Lube Jobs at Low Prices!

A Great Place to Grab a Coffee and a Prepositional Phrase!

Cool Ice Cream and Hot New Idioms!

Eat-and-Run English!

Any other enterprising ideas, my fellow FTs????