Methods and systems are provided for expediting updating a vehicle's powertrain calibration table. The table is updated with data generated on-board a given vehicle while being matured with data downloaded from a cloud-based network, the downloaded data generated on-board one or more other vehicles having matching powertrain characteristics. Regions of a vehicle's calibration table where sufficient data is not generated on-board a given vehicle is populated with data from one or more other vehicles having sufficient data for those corresponding regions.