I didn't realise these are hybrids (the exhaust is hidden), any idea how the emissions compare to the old ones. Even as hybrids, I guess the engine can run mor

I didn't realise these are hybrids (the exhaust is hidden), any idea how the emissions compare to the old ones. Even as hybrids, I guess the engine can run more efficiently, only runinng as needed and never idling so it must be a win.