Big credit to Volvo on building the instrument cluster with EV economy in mind. When you drive the car, there is a blended tachometer that shows you what level of acceleration you need to apply to keep the car in the EV mode, if you go over this magic line, the ICE fires up. The transition is noticeably jerky though. At first I thought the engine was too cold, but after driving a bit on gasoline, I tried again and I am sorry to report, the Volvo needs a bit more fine tuning here.
Main complaint from the reviewer was the roughness with which the gas engine kicks on while driving in EV mode.