First, let me say that I am delighted that Tesla developed an all wheel drive version of the Model S, and that with the P85D they have once and for all settled the argument that electric cars will never match the performance of gasoline powered cars. But in the process of creating an all out super-sedan, Tesla may have inadvertently walked away from a lucrative market segment. The market I'm referring to is buyers who want sporty performance, above average handling, but who do not require all wheel drive and do not need insane acceleration. With the P85D, Tesla has pushed the Model S into rarified territory. As a former Ferrari owner, I would define "rarified" as a car that requires wider wheels in the rear than in the front, and which has sub-four-second zero-to-sixty acceleration. These traits are typically found on serious sports cars, not on cars used on a daily basis. Tires on such vehicles cannot be rotated, and in the case of the P85D the tire cost differential is substantial. A set of 21-inch Michelin Pilot Sport tires for a P85D costs $1,800 vs. $1,200 for a set of 21-inch Pilot Sport tires for my P85. In Tesla's current vehicle lineup, the 85 (RWD) offers zero-to-sixty acceleration of 5.4 seconds, or 5.2 seconds for the 85D (AWD). The original P85 (RWD) has a 4.2 second zero-to-sixty. So a buyer who wants a sporty suspension and a bit more acceleration than the 85 has only one choice — to go all the way to the P85D with its substantially higher price, higher tire costs, and shorter range. In my opinion, Tesla has eliminated the sweet spot for those who do not require all wheel drive, but do want a vehicle with a sporty feel. The P85+ offered buyers a way to take the P85's handling up another notch, at the cost and inconvenience of wider rear wheels, but at least it was optional. While the P85+ was in production, Tesla was also making improvements to the P85 suspension, making the P85 an even better option for daily use combined with sporty handing. Unfortunately, this configuration has been eliminated in a bid to push buyers into a more expensive vehicle. I think Tesla make a mistake in dropping the P85. They've created a gap in their product line that would fulfill the needs of many buyers.