Tesla finally finalized its single-speed gearbox, on track for completion in August
denying them so vehemently before, but either way buyers of the first 40 cars that'll ship with the old powertrain won't have to wait long for an upgrade, since the 1.5 powertrain has been finalized and is slated for production in August. Tesla already has a 1.5 version they're driving regularly, and they're in the testing phase. 1.5 involves improvements to the motor, inverter and gearbox design, and improves torque among other things -- which gives that 3.9 second 0-60 spec they've always wanted.
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