Yes really. That's what he said. Straight up.
Standard non-poly Li-ion cells are to be discharged at 2C, at the maximum. I know that Tesla has said they are discharging their Panasonic batteries at 3C, which provides 50% more power to the motor. I don't think Panasonic approves that, but then there is no recourse to Panasonic. The new 2170 cells may indeed be rated at a higher discharge rate such as 2.5C. Or even 3C. Still not enough power. You need to go to 4C and certainly get the higher range 310 mi model to get to the 4 second range, I believe. So here is the deal -- if you buy a T3 310 mi Ludicrous, you get a beefier inverter to allow for let's say 4C discharge - with the caveat that the warranty on the battery is reduced, or that excessive high discharge will void the warranty. So the T3 310 mi at 4C will offer 300 kW of power, or 400 HP. This may offer 4 second 0-60.