First a quick introduction . . . I'm an older guy who loves performance cars. I've owned everything from BMW M5s to Porsche 911s (a 911 GTS is still my primary summer drive), and I've fallen in love with the Model S - not because it's an electric/green car, but because it's a phenomenal performance car. So now I'm trying to learn whether I can live with an electric car and I'd really appreciate some advice and feedback. I've driven both the 90D and P90D. I've been leaning toward the P90D even though I think it's a bit hard to justify the extra $20k. But tonight I read something in another post (difference between P85D and 85D.) which has me reconsidering that. You see, I have range anxiety about driving the MS in the winter to ski country. These are the longest trips that I regularly travel; by definition the temperature will be low and the roads may be snow covered; and northern New England is not Super Charger country. Now I know that I can make almost any trip by driving responsibly, but I'm a performance car driver and I tend to drive aggressively. And for me, it would really defeat the purpose of spending large money on a car like this, if I couldn't drive it the way I'd want to on my longest road trips. I hope that doesn't come across as petulant or offensive. But here's the quote from the above mentioned thread comparing the 85D and the P85D that intrigues me: Another difference is, the 85D can be driven at higher speed than P85D when the distance you have to drive is near limits. Let's say you need to drive 205 miles. Speed is the most important factor that determines energy consumption. If you can drive that distance in P85D at 75 mph, you can drive the same distance in 85D at 80 mph because you have more rated range to burn. Is that statement accurate? Does the 85D's 6-7% greater range compared to the P85D, equate to the ability to drive 6-7% faster and achieve the same range? If so, I may actually be able to drive a bit more "aggressively" with the 90D than the P90D. That (along with $20K in my pocket) may sway me back to the 90D. So what do the experts think?