If you are buying a new vehicle, then make sure its AWD. Some ramps are just too slippery for RWD.
My boat is light and on low tide, without AWD (or 4WD is what I have, different car) the rear wheels always skid until the front ones engage.
And get the heavy duty tow pack.
Apart from that, it should tow your boat fine. I personally prefer owning a diesel motor for towing, but it will do...