I have done 180+kmph in my Verna CRDI!! Have a picture of only 160+kmph though as i was alone when crossing 180+!! This was done with A/C on only , without A/C i think it gets very scary due to the heavy winds! The handling was not that great at that speed , the steering was very light and the steering wheel started to vibrate when braking at those speeds!! The suspension of the Verna is the main problem here , at such speeds even a small bump will jolt up the car completely!
Have done 160kmph in my Safari once in ECR!! Here i would say the car was rock steady and my fiends were sleeping in the car without knowing i was speeding and the noise was also minimal! The car was loaded with 7 people and A/C on!! You will not feel that you are doing 150+ , here also the steering wheel becomes very light but still it was good and not like Verna! You will feel confident to drive at that speeds!! But the steering wheel vibrates at those speeds and braking at those speeds is also scary!! But the suspension is great here! It absorbs almost everything even at such speeds!!
But i would highly recommend not to drive at those regularly , just once in a while is okay but still very risky! Our roads are not designed for such speeds!!