Board Thread:Game Discussion/@comment-34609328-20180326232235/@comment-129.113.148.98-20180328043729

You can still service and upgrade the car, even if that day's races are done. Simply add a RR3 widget on one of your homescreens. Then, the homescreen will say something like "XYZ Car servicing 1hr 30 min" (similar for the upgrades). Click on the widget, and it will launch you right into the service screen, or upgrades screen. Just make sure you do it before the car is done upgrading or servicing, otherwise there wont be anything to click on!