>1) The fatter you are the safer you will be in a full frontal collision.
>2) If a collision is unavoidable, step on the gas to inflict an equal >amount of damage on the heavier car.
I don't think that's valid, thinking of the ultimate situation:
If one heads on with a 18 wheeler in a MB, 18 wheeler is moving a 10mph, if MB is moving a 10 mph, MB driver may have good chance to survive, if as you said, MB driver tries to transfer more damage to the truck and increase its speed to 100 mph, it will kill the MB driver and maybe the truck driver as well.
99 BMW 540i 6-speed 110K Km
03 SAAB 9-5 wagon 80K Km
92 400E (Sold) 245K km
Still missing the days with the Benz, it kept me busy.