
The car, called the GQ, is the brand's latest extension, with styling by Citroen designer Mark Lloyd.
GQ is marketing the car as understated but desirable – in keeping with the magazine's style.
The car is not for sale but GQ is not ruling out putting the car into production in the future. Details of the car appear in the April issue of GQ.
It is not the first time that GQ has partnered with other brands, with past ventures including personalised aftershaves and handmade shoes.
Dylan Jones, GQ editor, said: "I wanted something practical, something cool and something idiosyncratic.
"The GQ car needed to have the 'want' factor, but it also needed to look, feel and 'drive' like the sort of car no sane man could ignore. We think it looks very special."