|
Overloading a car is common and suspension upgrades are also moderately common. Breaking a car axle due to full occupancy is unheard of but you could slowly wear bushings or overload tires.
If you could find your way to test drive a Tesla with your family the answer would be clear
Some cars when overloaded you would hardly know until you hit a big bump
Others the handling is immediately different
A few cars (my Volt) had tires as the limiting factor on weight so adding PSI was prudent since blowouts on OEM was already very common.
No good answer unless someone here already owns the specimen with a large enough number of passengers to comment
|