One reply mentions "old technology". I wouldn't exactly call a 2010 SRT "old technology". Is it as new as a 2011? Of course not.
That said, if you like the car, I would make a serious offer of $35K. Maybe even $34.5K. You need to convince the dealership that you are going to buy a car, either from them or another dealer, that you have options for looking at other cars, and most importantly that you either have or have access to the funds to make the purchase.
Remember, be prepared to walk away. I guarantee you that you will be getting a call from that same dealer if you do. It may take a few days (they like to play their little control games), but wait them out. If you make the call back, they know they have you.