Model will continue to be be front-wheel drive.
Update: Sources in Japan are now suggesting the mule could actually be an early prototype for the next-generation Lexus LS.
The sixth-generation Lexus ES is only four years ago but it appears the company has already begun working on the next-generation model.
Snapped undergoing testing in the United States, this early mule is a bug-eyed monster that bears little resemblance to the production model. While the mule doesn't provide many clues about the upcoming sedan, speculation suggests the car will have a more refined L-Finesse design. Rumors have also indicated the model will grow in size thanks to an extended wheelbase.
Lexus has been tight-lipped about the next-generation ES but it is expected to ride on the Toyota New Global Architecture (TNGA) that underpins the Prius. This means the ES will continue to be based on a front-wheel drive platform.
Engine options remain unconfirmed but the model is expected to be offered with a V6 engine and a hybrid powertrain. There's no word on specifications but the current model has a 3.5-liter V6 engine that produces 268 horsepower and 248 pound-feet of torque. This enables the car to accelerate from 0-60 miles per hour in 7.1 seconds before hitting a top speed of 130 mph.
The next-generation Lexus ES is expected to be introduced in 2018 or 2019.