With the GS gone, Lexus no longer has a RWD midsize sedan to rival the BMW 5 Series and Mercedes-Benz E-Class. Though the Lexus ES offers a similar size and luxury, it is dynamically inferior to the European options due to its front-wheel-drive platform shared with the Toyota Avalon.
If Lexus does build a car based on the Mirai, we hope it gets more power than the Toyota version. The Mirai only produces 179 horsepower and 221 lb-ft of torque, and takes a sluggish 9.2 seconds to hit 60 mph. If Lexus could add more powerful electric motors, it could easily give the GS quicker acceleration. A Mirai-based GS wouldn’t compete with the Germans on raw speed, but its hydrogen powertrain would be the first to feature in a luxury brand in the United States.