SUV's roll over easier at higher speeds and especially with weight.
 
Common sense to slow down if you have a vehicle that leans as you enter curves... Common sense!

I had sports cars that were my  really 'fun' weekend cruising car --and I drove a fullsize truck and later SUV's (which I never rolled once btw in several hundred thousand miles!) in regular freeway travels. 

Bigger is much safer vehicles (for their occupants) in accidents.
...

PS Ford SUV's handle great and go well over 200,000 miles today.