I feel your pain. My Flex, which I lowered, has this issue whenever I drive it in LA.
Some options might be:
Taller tires when you replace. Also need to make sure they don't rub inside the fender but even a little gained here could help.
Wedge delrin type blocks between the spring coils to keep from compressing. Best to to this with each wheel of the ground. Can have a negative impact on ride quality.
Stiffer springs. Again a possible effect on ride quality
Unload the car (includes less fuel in the tank)
Put the fatter people on the driver's side.
Don't know if there are any air bladders that might work. I put these in my Flex to compensate for great load when i have a trailer and they raise the car quite a bit in the rear when unloaded.
Adapt a "lo rider" kit for the Cmax
These are just some of the ideas I could quickly come up with. Use at your own risk of course. I have used all methods listed with varying degrees of success. I just didn't tell my passengers I was putting the larger ones on my side. I just said it was for "weight and balance" since I am a long time pilot and left it at that. Nobody asked any more. Or course I am the biggest anyway and since I am driving I am in the right place to begin with.