Instruct: Classify Amazon reviews into positive or negative sentiment
Query: excellent resource for hybrid car purchasers

This is an excellent, clearly written book that brings together lots of different details about hybrid cars, all in one place. I would also recommend "Plug-In Hybrids: The Cars that will Recharge America" for some more information on hybrids around the world, and the new feature of converting a hybrid into a plug-in hybrid.