ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEMWhile driving a 2022 Jaguar I-Pace for 60 miles, the car came to a stop sign near its destination. At this point, the car would stutter and shake when attempting to accelerate, simultaneously the car would roll back since there was a slight decline in the road. Brakes were full functional throughout this time. However, no warnings were shown during the occurrence and by the time the driver was able to apply the brakes, the car had already rolled back approximately 2 feet. After this time, the car accelerated but the issue repeated itself at the next stop sign and again at the destination. While approaching a drive way at the destination with a 10-15% grade, the vehicle completely cut power halfway up the drive way. At this time the car rolled back into the street, approximately 6 feet, before the driver could react and apply brakes. Had there been someone standing or walking on the side walk at the end of the driveway, it would have resulted in severe injuries or even death. At the time, no vehicles were on the road, however if there were, the vehicle would have rolled into traffic before the driver is able to react. Power was regained approximately 10 seconds after rolling backwards. The vehicle was then parked curbside for approximately 4 hours. Upon starting and driving the vehicle again, the same issues with stuttering/shaking when accelerating from a standstill and sudden loss of power with any incline continued. The next day, the vehicle had to be towed to a Jaguar Land Rover dealer for investigation. No previous repair work or modifications have been done to the vehicle. All care and maintenance had been done according to the manual. Battery was also charged to 80% as recommended by the manual for optimal battery life. At the time the issues had started, the vehicle showed 48% battery life remaining. No previous issues or problems had occurred with the vehicle, no recalls or TSB in place as of 9/12/22 for the 2022 model year.