In a class "Bullets and Vehicles" at Sig Sauer Academy. (https://sigsaueracademy.com/courses/bullets-and-vehicles). Truly amazing. Also some classes at Thunder Ranch (https://thunderranchinc.com/handgun-vehicle-trauma) but those were using own own rental cars (lol, I had an Infinity QX80 with full coverage) and the goal was to avoid putting any damage on the car, so it was just firing from seat/getting out/etc. drills. The Sig class has good law enforcement support (many of the students are LE/agency) so they had a repo'd car: in my class most of the work was done with Audi 2003 (B6 model) A4 sedan, which was cool as I was driving a 2006 (B7 model) A4 at the time. Lots of cool pictures somewhere.

I also worked for ~6y in Iraq/Afghanistan but we never shot through glass in our own vehicles, did shoot rifles from open doors etc. on ranges but the times I was in trucks which were actually shooting "in anger" I was a passenger in the back in armored vehicle and the guy up top did all the work (and almost always it was warning shots, and most often frozen water bottles thrown at cars first to dissuade them)

(Basic firearms training is great, and the vehicle stuff is fun, but TBH the medical parts of these classes are far more useful; I wish more people would take trauma management classes. Outside of war zones, easy to go entire life without any "security" problems, but lots of car accidents, tool accidents, etc. where knwoing this stuff can save someone.)