I disagree that the second version is the same as the original. You have the verb "to run," and you also have variants of this, like "to run into," "to run smack into," "to run aground," "to run afoul," etc. Here you have another variant, "to run head-on into." If you separate the elements of this as, "ran into a police vehicle head-on," you no longer have the original verb "to run head-on into