This image is from a collection commissioned by the United States Department of Transportation and designed by AIGA. It is copyright-free, and is available here.

From [1] [2] converted from EPS to SVG using pstoedit.  Edited in Inkscape.  See also the drawing proportions
File:Aiga carrental.svg
File:20 airtransportation inv.svg
File:Aiga carrental.svg: *Cmprince:
Anuskafm:
Azaghal of Belegost: *Cmprince
derivative work Azaghal of Belegost
derivative work: Azaghal of Belegost
Imalipusram:
derivative work: Azaghal of Belegost