The DriveNow car hire scheme logo sits on a Bayerische Motoren Werke AG (BMW) 1-Series 120d automobile as it stands parked outside Konzerthaus concert hall on the Gendarmenmarkt square in Berlin, Germany, on Monday Aug. 25, 2014. Sixt SE, Germany's biggest auto-rental company, said its DriveNow car-sharing venture with BMW is profitable in cities where it's been operating for more than a year as sign-ups exceed forecasts. Photographer: Krisztian Bocsi/Bloomberg via Getty Images