Listed below are all documents and RMI.org site pages related to this topic.
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http://www.rmi.org/RFGraph-Basic_characteristics_of_Revolutionary_plus_autos
Our Revolutionary auto class is based on RMI’s extensive work on the Hypercar. We use a cost model for superefficient battery-electric and fuel cell autos for both cars and light trucks. These vehicles, described in this table, are designed to compete with EIA’s average automobile in price and all driver attributes.
http://www.rmi.org/RFGraph-advanced_composite_hypercar_class_autobodies
The Hypercar (shown) achieved 53% curb-mass reduction without compromising safety. Its 14-part structure was much simpler than its typical 100–200 part counterparts made of steel and aluminum. A paper by Oak Ridge National Laboratory drafted a concept of a composite intensive body-in-white with 18 parts. Its concept had over a 60% mass reduction, also with uncompromised safety.