Here's the KS aggravated battery statute:
21-3414.
(a) Aggravated battery is:
(1)(A) Intentionally causing great bodily harm to another person or disfigurement of another person; or
(B) intentionally causing bodily harm to another person with a deadly weapon, or in any manner whereby great bodily harm, disfigurement or death can be inflicted; or
(C) intentionally causing physical contact with another person when done in a rude, insulting or angry manner with a deadly weapon, or in any manner whereby great bodily harm, disfigurement or death can be inflicted; or
(2)(A) recklessly causing great bodily harm to another person or disfigurement of another person; or
(B) recklessly causing bodily harm to another person with a deadly weapon, or in any manner whereby great bodily harm, disfigurement or death can be inflicted.
(b) Aggravated battery as described in subsection (a)(1)(A) is a severity level 4, person felony. Aggravated battery as described in subsections (a)(1)(B) and (a)(1)(C) is a severity level 7, person felony. Aggravated battery as described in subsection (a)(2)(A) is a severity level 5, person felony. Aggravated battery as described in subsection (a)(2)(B) is a severity level 8, person felony. A person convicted of aggravated battery shall be subject to the provisions of subsection (h) of K.S.A. 21-4704 and amendments thereto.
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[While it could apply to a number of scenarios, it seems to stress the "deadly weapon" aspect, and a moving vehicle is a deadly weapon.]
http://answers.uslegal.com/questions.php?q=15317