I don't think those 8100 pounds will help much if you are crashing into a mountain wall or drop down into a 1m deep ditch on the side of the road. Just slamming the brakes will probably give you a whiplash in that thing and it probably has tons of sharp and hard edges in the interior. Modern cars have so many safety features, auto tightening of the safety belts, seats give way in strategical locations to save your back, etc etc etc. And don't forget active safety such as auto brakes.