Just got back from my best trop ever to DLP. The sequoia was a fantastic hotel. I cant really answer your question as the hotel is so large. As far as I can tell none of the montanna rooms look out onto the car park. Rooms normally look out onto a forest of pine and sequoia trees. Don't worry about noise levels either, the hotel is one of the most peacefull i have visited and if you open your window you can hear delightful relaxing piped music!
We had a room mix up and tried to obtain a lake side room, the staff will not give out these rooms unless you pay a suplement. I would reccomend that you request a room in a high room near to the elevators. But beware because you may have to face the absolutly ugly Santa Fe Hotel.