(sorry for big post) Porsche and Mercedes can manufacture all the electric cars they want... but they can't get hold of enough batteries
.
Tesla already uses up about half of the world's supply of Li-ion batteries. (thanks to Panasonic's re-opened factories) This is to make just 35,000-50,000 BEVs per year at present.
Where do Porsche and Mercedes expect to get the batteries for their cars? (Mercedes got its B Class batteries from Tesla)
+1 to the commenters who say that the Porsche "EV variant" won't be an effective competitor. The key to success for the Model S is its efficiency. Everything from chassis weight and aerodynamics to battery mass, location, center of gravity, motor and power electronics are critical. The Model S was designed with every one of those components fresh off the designer's desk, each one specified to complement the other components it will unite with to create a great car. If Porsche, or anyone for that matter, hopes to compete... taking a gasoline car and converting it into an electric one is nuts. Porsche makes great cars, and they're custom-built to be exactly as they are. They didn't take a Panamera and convert it into a 918, for example. Neither is the Panamera simply a stretched 911. So far, Porsche's advantages have lain in the combination of a large number of original parts that are incrementally better than those in inferior brands' cars. When put together, the car is amazing. It would be highly irregular and surprising if Porsche veered away from this philosophy for its first pure BEV.
But, perhaps its first pure BEV may simply be a test, to see how popular it will be. If it sells like crazy, they will replace it with a ground-up BEV design that has much lower center of gravity. Like one chap said above, he decided to go for the Model S when he became convinced Audi was not going to produce anything - after they had said they would. There are a lot of Porsche fans who are heartbroken about having to buy an American car! (not surprising) If they could get something from Porsche that has the same advantages, they would. So... perhaps this sort of announcement delays the process of brand loyalty destruction via customers jumping the fence over to Tesla - while they scramble to create BEV variants of the Panamera. Or perhaps they really haven't started yet at all.
One thing to consider is that Porsche makes out-and-out sports cars. The Cayenne is certainly a family hauler for some people, but Porsche don't shy away from the vehicle's sporting capability, and honestly, the Cayenne doesn't have that much storage space unless you fold the rear seats down. Porsche may opt to convert a Panamera to BEV operation, and not really do anything to improve the cargo space. Think about it... people who complain about the cargo space in the Panamera are going to be met with confused looks
However, Tesla does
not market itself as a sports car company, and tries to appeal to as many people as possible, part of the task of switching the entire planet to BEVs. One thing about the Tesla Model S is that its mechanical packaging allows for massive interior space. More than the Panamera or Cayenne in fact... it truly gives the Tesla universal appeal. It just happens to be really fast, too, and has stolen customers from Porsche. Maybe Porsche can match the 3.2 0-60 acceleration, but it's going to take them a
lot more work to match the interior space - will they try? Or just give up and ignore that problem? Even with mediocre storage, it will still be marketable as a Porsche, and please the brand loyal (who never had that much cargo space anyway). Elon will still be pleased no matter what, as there are more BEVs on offer.
I noticed this...
Porsches baby Panamera delayed until 2019 or later - Autoblog
No doubt these plans are in turmoil, raging due to the "Tesla problem."
Finally, the subject of fast DC charging. Porsche is backed by Volkswagen and has the wherewithal to install proprietary fast chargers of their own design around the world. But would they? It would take ages and ages to put them all in, and Tesla's Superchargers lie everywhere already, available to use. It would be the best solution for the
planet for other brands to adopt the Tesla Supercharger. I can't say if these corporate entities will get that, but I hope they will!