That’s a bit lower than Toyota’s preliminary estimate of 28 mpg (combined).
The GS 450h features a completely new powertrain that combines a 3.5-liter V6 engine with a new compact, high-output, permanent magnet electric motor that drives the rear wheels. The transmission utilizes an advanced two-stage motor torque multiplication device for the Electronic Continuously Variable Transmission (ECVT) motor, delivering responsive and seamless acceleration with no power loss.
With a combined system output of 339 horsepower, the new 3.5-liter V6 hybrid delivers the performance of a modern 4.5-liter V8 engine and is nearly as quick or quicker than every V8-powered competitor in its class. The GS 450h accelerates from zero-to-60 miles per hour in approximately 5.2 seconds, but is an estimated 28% more fuel efficient than its V8 competitors and is expected to meet (SULEV)/Tier 2-BIN 3 emissions criteria.
The GS 450h goes on sale in the US in early May with a base price of $54,900. Toyota put the GS 450h on sale in Japan last week, and expects to sell 1,800 units per year there.