The Washington Post has an article worth reading about the challenges and future of cross-border trade. Both countries are interested in expansion but are hampered by bureaucratic red tape. Though there are clear sings of progress; now, trucks are allowed to cross the border, which was only made possible in 2007. The existence of restricted Visas which only allow access to certain cities was news to me.
This article only makes a passing reference to truck art, when mentioning the “vibrantly painted” vehicle owned by a Pakistani transporting dates. The print version has some great pictures of fully decorated trucks preparing to cross the border. It is unfortunate the Post did not choose those for their online version.