The other matter is the definition of Head of State. In reality, the individuals I have identified with the cars are all Heads of Governments. If they are in fact Heads of State, it is because in their respective nations, such as the United States, the leader is both the Head of State and the Head of Government.
One surprise so far is the fact that not a single leader has chosen a Lexus LS as his/her car of choice. Maybe I'll uncover one later.
A running tally of the cars listed thus far can be found at the end of this post. Enjoy.
47. Bhutan. King Wangchuck (I'm not making this up) is humble, respected, and popular. He drives a Land Cruiser, like many of his subjects. A true man of the people.
48. China. Because China has a burgeoning auto industry, Hu has no choice but to ride in one of China's own. Hongqi (Red Flag in Mandarin) has been making cars for the Communist elite for decades. Its latest flagship is an ugly amalgam of a Lincoln Town Car, South Korean technology, and Chinese craftsmanship. Yeah, it's that bad. The factory website boasts, among other things, the limo's remote control trunk and fuel door openers. Yikes.

50. Japan. Japanese prime ministers and industrialists all ride in Toyota Century's. Understated blandness best describes these three-box saloons.




55. Tonga. The eccentric king is known for his adoration of military uniforms (especially pith helmets) and his black London taxi. To each his own.

Merc S-class- 15
BMW 7 series-6
Land Cruiser- 4
Phaeton- 4
Maybach- 3
A8- 2
G-wagen- 2
Holden- 2
Jag- 2
ZIL- 2
One each of: Hyundai, Lancia, Skoda, A6, Peugeot, Renault, Lincoln, VW van, Caddy, London taxi, Daimler, Suburban, Toyota Century, Honqi
CKY