Caitlin Duncan. Toyota. October 18th , 2017.
One year after the 2017 model year Toyota Sienna van ushered in a powerful and efficient new powertrain and led the segment in 2016 calendar year sales, the 2018 model adds many styling, and technological safety and convenience features. For 2018, TSS-P will be standard on all Sienna models. This multi-feature advanced active safety suite bundles cutting edge active safety technologies including Pre-Collision System with Pedestrian Detection (PCS w/PD), Full-Speed Range Dynamic Radar Cruise Control (DRCC), Lane Departure Alert with Steering Assist (LDA w/SA); and Automatic High Beams (AHB).
The fortified body includes additional gussets for the front/rear door frame (B-pillar) that have greatly increased the frame/joint strength. Also, the front suspension tower brace embedded within the cowl body now makes use of a closed cross-section construction, further advancing the vehicle’s dynamic handling prowess and stability in the corners. At the rear of the vehicle, a new rear body frame of annular construction enhances structural rigidity, joined by additional braces added to the rear suspension that can withstand higher levels of lateral force and increase the vehicle‘s lateral rigidity.
Like the 2.5-liter inline 4-cylinder Dynamic Force Engine, the Toyota Camry’s newly-developed 3.5-liter V-6 is equipped with the highly-advanced D-4S direct injection system, along with a specially-developed new VVT-iW (Variable Valve Timing-intelligent Wide) variable valve timing system. Thanks to the addition of these highly efficient engine technologies, it delivers higher power output, and class-leading fuel efficiency. The 24-valve DOHC 3.5-liter V-6 engine employs the VVT-iW system for the intake, with VVT-i (Variable Valve Timing - Intelligent) on the exhaust, an efficient 11.8:1 compression ratio and a more squared bore and stroke of 3.70 inches and 3.27 inches, respectively, in comparison to the longer stroke of the Camry’s new 2.5-liter inline 4-cylinder power plant. Power output is rated at 301 horsepower at 6,600 rpm an impressive torque rating of 267 ft.-lb. at 4,700 rpm. Despite its exceptional power output, the new 3.5-liter V-6 engine achieves exemplary fuel efficiency with an EPA-estimated rating of 22 mpg city/33 mpg highway/26 mpg combined, an increase of eight percent for combined mpg over the previous V6.
Despite the increased use of high-tensile-strength sheet metal and hot stamping materials resulting in a lightweight body, further weight reduction has been achieved through the fitment of an aluminum hood, while new construction techniques have led to the use of thinner body panels for the roof, hood, trunk lid, front and rear doors and front fenders when compared with the previous model. Laser Screw Welding (LSW) has been incorporated at key junctures throughout the body/platform for increased joint rigidity. A special high-rigidity urethane adhesive has been applied to both the windshield and rear window where it meets the vehicle body that helps to realize increased body rigidity.
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