Just wanted to check if Toyota Estima 2.4 is ok to buy when considering driving on windy and hilly roads in NZ?

I had been driving a Swift 1.2 with 5 people, and at certain roads especially with steep curves, it can only cruise at 30 KM / hour. and cars behind me becomes impatient.

Or would an SUV be more a powerful car?

During my trip to Queenstown, I hired a Mahindra XUV 500, which was good, its powerful on hilly roads... But it is less practical, means not enough space, no places to even keep my keys and phone etc.