not entirely correct. I have both conti and jap cars. My FC civic is really not bad on highways. Can speed more than 140kmh without any fuss and 'floaty' feeling. Its almost comparable to my G30 Bimmer.

For your case is more of a SUV which is on a high center of gravity. Hence, you should not be speeding more than 140kmh.

Heck, I used to owned an Alphard/Vellfire before and I can really say that its stable at 120kmh max. More than that, it's pretty risky. I seriously see SOOOOOOO MANY Alphard/Vellfire that speeds more than 140kmh on highways. They either have balls of steel or just want to stoke their BIG EGOs!

Cheers!