.338 Win. Mag. would probably do it for most midsize and import SUVs. For Suburbans, I'd recommend nothing less than a .416 Rigby, although a Marlin .45-70 with Garrett 530-grainers should do nicely and would be lot cheaper. Better yet a .50 BMG Ma Deuce with a belt of API ammo!
If it's a Ford, just use a .223 and shoot out the tires.
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Alfadog
NRA Life Member
"DO NOT TAKE COUNSEL OF YOUR FEARS."
--G. S. Patton, Jr., Lt. Gen., USA, 6 March 1944