“The brakes are the usual hybrid sore point, with lots of regenerative stiffness and little real braking sensation. This is the GS to drive if you're strictly concerned with a planet-friendly statement.” — The Car Connection
“There's a complete absence of road or engine noise, the ride is plush, and the seats are as soft as buttery mashed potatoes.” — Car and Driver
“Body control is admirable. Best of all is the powerful off-the-line acceleration: the powertrain sounds throaty and strong and the power delivery is linear, not abrupt.” — Automobile
“.....the 450h is EPA-rated at 29/34 mpg, some 35 percent better than the GS 350 and prior GS 450h. It compares well to Infiniti's M35h hybrid (27/32 mpg) and Mercedes-Benz's E400 hybrid (an estimated 24/31 mpg).” — Cars.com