Perhaps because of trucks, yes---but I've found the majority of car noise is from the tires and not the engines. Most modern ICE cars are exceptionally quiet.
True, although parking lots will be spooky. Our 2018 Tesla Model 3 (pre-external speaker) is so quiet in parking lots/neighborhoods that people don't hear it sneaking up behind them.
Really reminds me of this clip from The Office (US):
