Yeah I guess, but it's still a massive, tall, 7,000lb vehicle with a crappy brakes, a shit ton of wind resistance and fat, squishy, high sidewall 35" off road tires. Nothing about trucks is efficient for high speeds. I'm sure an RHO still feels like it's going to fly off the road at those speeds, regardless of suspension. Again, just my 2 cents. I'll take the car out when I'm looking for that kind of action. I mostly come from the performance car area of things so I'm probably just biased from being in those vehicles for such a long time. Once you drive those cars, trucks feel like a joke at those speeds.
An m4 feels more stable at 150 than my truck does at like 75.