I would like a feature to upload my car (type, make, year, model, etc.) and so could collect my daily mileage. Then WAZE (after xx miles) could alert me about changing my brakes, renew tires, oil, etc. as well presenting me promotions from near/path services that we all forget at the right time.
As well recommending new cars offers (same or alternative make) or insurances, accesories, detailing, etc.
A whole automotive world is there, and WAZE can be the best interface to interact with it.
You know my displacement, now you must know my car.