Originally Posted by Red Bread
Agreed, and I do find it a little odd that all of the show and test cars have had 215 A/S tires. I'd imagine some of this is to more easily expose the limits of the car to the journalists currently driving them, but if they come equipped this way, a quick tire change would probably be money well spent.
No, quite the contrary actually! As Year's_End has already pointed out the narrower rubber makes for VERY progressive breakaway characteristics.
In fact, it's not only the cheer grip we should be looking for in a tire... for a dd the most important thing is its breakaway characteristics. A tire should be predictable and if then you can add the grip you've found the best tire possible. It will always be a trade-off, though!
Slicks are not very predictable.