See the main page of Tour de Sol 2004 Photos at
http://www.AutoAuditorium.com/TdS_Reports_2004/photos.html
Unless otherwise noted,
these all photos were taken by
and Copyright 2004 to
John Helwig.
It isn't obvious from this picture, but the smaller diesel engine takes up a
less space in the engine compartment.
Also since all the pumps run on electricity, they don't have to be clustered
around the engine, also making for less clutter.
Another view.