Hello all I'm new to the forum you may have seen my introduction thread in the Intros board. I've been lurking this forum for some time now and haven't seen answers to some questions I have for the lucky people who have been able to drive one of these sexy cars. 1. Has anyone been able to hear the stereo on the model S? I know there is 2 systesm, a 7.0 and a 12.1. I am interested in having subwoofers in my car and I seen another thread regarding this subject but nobody said anything about the quality of the 12.1 system. If you have heard the 12.1, how satisfied were you with the sound quality? Do you think I would need an additional subwoofer? 2. On the performance model the 0-60 is 4.4 seconds, but does anyone know the 0-100 time? If I'm cruising at 60 mph, will the car accelerate to 120mph in 4.4 seconds or is acceleration toned down at higher speeds? 3. What are your opinions on high performance/low-profile tires? I have read that the low-profiles cost more money to replace and wear our faster because they are softer. How much do the 19" tires cost (ballpark) and how much more do the 21" tires cost (ballpark)? Also, how much faster do the low-profiles wear out? Is it like a night and day thing? I'm going to school in 2 years and will be saving all the money I get from working up north to buy one of these cars in 2014, and I understand it may seem pre-mature to be asking these questions but I want to know everything about the car. Having something to look forward to will keep me on the strait and narrow. And if your wondering I'm going to school for Sustainable Energy Engineer, so a Tesla Model S is the perfect car for my chosen life path. Please don't underestimate my ability to acquire the funds, I make enough money to facilitate this purchase.