Now that we have Xs being delivered and spotted on the road, we should determine how we are abbreviate our cars. Thus far, I've called mine an S85 for "non-Performance, 85 kWh, RWD". Now, the 40s, 60s, and 85s are easy, but what happens for the 70 and 90? Do we say S90D for "Model S, non-Performance, 90 kWh, Dual Motor"? If so, then we can use X90D for the Model X of the same. But what about the performance models? Most people say they have a P90D or P90D or P90DL (ludicrous). But that won't resolve whether it's a Model S or X unless enough context is there. Do we say SP90DL (or underline instead of "L"), XP90DL, S90D, X90D, S70D, X70D, S90, S85, S60?