Looks like your zeroing in on a new one. My opinion is 20% but that fluctuates with dealer, model, price. Higher priced ones with a floor plan that others don't like but you do, might creep up to 24%. Having said that, I feel a need to preach! I suggest a look at a 3-4 year old used one. You save a lot of money because the 1st yr. depreciation of 25% is used up. Remember, every dealer has to make a 5-10% profit, the salesman needs his cut, the shipping, dealer prep, flooring cost, etc is all fluff that comes with the new price. If you have a $160K budget, you could easily get a $300K model that is 3-4 years old. That is my experience and my opinion. Good luck on your choice.