DigitasLBi has entered into a partnership with Liftshare, a car-sharing service. As part of the tie-up, the digital agency will be paid according to the commercial impact of its work. Liftshare has tasked DigitasLBi with transforming its business model through digital channels and launching the brand to a consumer audience. Under the agreement, the agency will receive a portion of any revenues generated via consumer bookings rather than a flat fee.