Well according to Steam I've played 287 hrs but I'm pretty sure I've played a lot more (I usually use the BeamNG desktop shortcut instead of waiting for Steam to bootup)
just reached 400 hours just today (been playing since the December 2015 update or right before fire was added, like days before)
according to steam 240hrs. and launched via steam in jan 2017. so yeah, a ton more hours outside aswell.
480 ish on my current steam account Over 500 on my old one And at least another 500 before steam version