I would be upfront with my dealer, and let him know what you're considering doing. Get his best price. Then, I'd VISIT the other dealer, and let HIM know what you're considering doing...you can tell him the best price you've been offered on a new one. See if the used dealer drops to below 10K. Once you have both discounted numbers, you'll know what to do....but, it's going to take an actual visit to the used dealer.