text: how fast does a 98 nissan altima need to go in order for a body to be thrown through the front windshield? the 1998 nissan altima's overall length is 183.5 in overall width--69.1 in overall height--55.9 in curb weight--2859lbs. front head room--39.4 in body height to windshield flange--578mm the car has front wheel drive.  please help me!! i need to find out whether or not the crime lab has calculated my sisters death correctly or not. it just seemed a little too off. 7 mph !!!!   really