What kind of vehicle, out of curiosity, was Hahn driving?
1998 Mercedes.
https://www.nj.com/hudson/2016/09/nj_man_indicted_in_crash_that_killed_jersey_city_t.html
Based on that statement, it must have been something like a LearJet.
Car in fatal Turnpike crash was rear-ended before toll plaza, State Police say