Hybrid Recommendation

whisper_jeff writes: I finally had the chance to watch Al Gore's An Inconvenient Truth and it got me thinking (which all good documentaries should do and this was a good documentary). One thing it got me thinking about was hybrid cars, which are becoming more and more popular. I was wondering if slashdot readers had any insights into good hybrids that are worth taking a serious look at. Which are most effecient? Which maintain high performance while cutting emissions? Which cut operating costs drastically to offset the higher purchase price of the hybrid technology? Which, all things considered, are worth considering?