That transmission is really the unsung hero when it comes to the GS 450h and its hybrid powertrain, as it marshals the power of this complicated system into a smooth stream. Lexus claims that this new CVT uses an advanced two-stage motor torque multiplication device to manage the power output. Interestingly, in a traditional sense this transmission is more a part of the hybrid powertrain than it is a CVT. Unlike most, which are pulley-based units, the Toyota transmission consists of an electric motor, generator and three-way planetary gear connected to the drive shaft, engine and primary electric motor. The unit controls power output via two main ratios – high and low – which enables better low-gear torque and high-end performance, all with improved fuel economy. The transmission also has three settings – Normal, for the best balance between power and traction; Power, for acceleration; and Snow, for traction control.