Toyota Motor Corp fully remodeled the "LS500" sedan, the flagship model in the Lexus series, for the first time in 11 years and exhibited its North American model at North American International Auto Show (NAIAS) 2017 Jan 9, 2017 (local time).
To improve the preventive safety of the new (fifth-generation) LS, which will be released at the end of 2017, Toyota employed a function to avoid a collision with a pedestrian by automatic steering. When a pedestrian appears in front of the vehicle, a camera is used to detect the possibility of a collision, and a warning is displayed on a head-up display (HUD) to notify the driver of the risk.
At the same time, the brakes are automatically applied based on data collected by the camera and a milliwave radar device. If the system determines that the collision still cannot be avoided, it finds a space on lanes and automatically steers the vehicle to support collision avoidance.
The new LS comes with a newly-developed 3.5L V6 twin-turbo engine. Its maximum output and maximum torque are 310kW and 600N·m, respectively, which are 22kW and 100N·m higher than those of the 4.6L V8 naturally-aspirated engine of the existing model (LS460).
This time, Toyota employed a newly-developed 10-speed automatic transmission (AT) in place of the eight-speed AT used for the existing model. By increasing the number of gears and optimizing the usable region of each gear, the company realized smooth, quick acceleration.
New platform used to cut vehicle weight
As in the case of the new "Lexus LC" coupe to be released in the spring of 2017, Toyota employed the "GA-L (Global Architecture-L)" platform for the new LS. As a result, the vehicle realizes a coupe-like external appearance while securing enough space for passengers as a sedan. Also, by increasing the usage ratio of high-tensible steel plate, aluminum alloy, etc, the company reduced the mass of the body by 200 pounds (about 90kg), compared with the existing model.
The new LS measures 5,235 (L) x 1,900 (W) x 1,450mm (H) and is 145mm longer, 25mm wider and 15mm lower than the existing model. Its wheelbase is 3,125mm.