Motoring West is the first in a projected series that will examine the place of the motorcar in Trans-Mississippi America to 1940. Edited by Peter J. Blodgett, curator of manuscripts at the Huntington Library, the work brings together explanatory historical material that sets a critical and analytical context with a diverse collection of primary sources. The result is an interesting mix of readings that takes us well beyond Dayton Duncan’s Horatio’s Drive and the Ken Burns film sequel.