This poem is an interesting—if occasionally difficult—read, considering its seemingly erratic use of spacing, punctuation, and capitalization. A little research into the style of E. E. Cummings's writing gives us a deeper insight to the meaning of this poem. Cummings is known for using idiosyncratic spacing, text alignment, and capitalization as additional poetic tools (in addition to the usual imagery and form techniques many poets employ). As with any literary device, Cummings's play with words and letters helps to create each poem's tone, mood, and meaning.
I believe it helps to read E. E. Cummings's poetry out loud. With his style in mind, "she being Brand / -new" tells the story of a man taking his car out for a pleasurable ride, at times speeding up to enjoy what the car is capable of, and at times slowing down to relish the experience.
As with most poetry, however, perhaps the real meaning emerges when the reader takes the themes and central metaphors of "she being Brand/ -new" into mind. To state it frankly, this poem seems to be an extended metaphor for an erotic act between a man and a woman. I'll try to support that conclusion without being too indiscreet.
E. E. Cummings crafts the poem with particular focus on the tactile feelings of driving and the intimate inner workings of the car. He also works with his atypical syntax to communicate the energy of the narrator. The narrator begins very eager, then realizes he has to slow down before the ride accelerates and the poem reaches its climax. The poem ends with a feeling of completion as the narrator slams on the brakes and brings