The 2026 model also introduces a long-awaited, major technology overhaul inside the cabin and standardizes aggressive F SPORT styling across the board.

Performance and Powertrain

Every 2026 IS 350 uses the same naturally aspirated powerplant, with the transmission and handling characteristics varying by drivetrain and package:

• Engine: 3.5L Naturally Aspirated V6

• Horsepower: 311 hp @ 6,600 rpm

• Torque: 280 lb-ft @ 4,800 rpm

• Rear-Wheel Drive (RWD): Paired with an 8-speed Sport Direct-Shift automatic transmission. RWD models equipped with the optional Handling Package receive a Torsen limited-slip rear differential.

• All-Wheel Drive (AWD): Paired with a 6-speed automatic transmission and a rear-biased AWD system.

• Fuel Economy: 19 city / 27 highway / 22 combined mpg.

Major Interior and Tech Upgrades

The 2026 interior addresses previous criticisms by completely replacing older infotainment setups with a highly modern dual-screen layout:

• Lexus Interface Touchscreen: A new, standard 12.3-inch central touchscreen replaces the old 8-inch unit. It features faster processing, wireless Apple CarPlay, wireless Android Auto, and the “Hey Lexus” natural language voice assistant.

• Digital Cockpit: A standard 12.3-inch fully digital instrument cluster sits ahead of the driver, featuring sharp graphics and customizable layouts that change based on the selected drive mode.

• Console Redesign: A textured Forged Bamboo style finish replaces the older, scratch-prone piano black trim on the center console.

• Standard Amenities: Every model now includes a wireless smartphone charging pad, four USB-C ports, and multi-color ambient cabin lighting.

Trim Structure

The lineup is broken down into two main tiers, both featuring standard F SPORT exterior bodywork, sport bumpers, a signature wide-stance grille, and 19-inch wheels:

• F SPORT Design: Focuses on aggressive looks and the complete upgraded tech suite at a more accessible entry point. Includes heated NuLuxe front seats and a power moonroof.

• F SPORT: Adds functional performance and comfort upgrades, including bolstered heated and ventilated front sport seats, a heated F SPORT steering wheel, aluminum pedals, and memory settings.

• F SPORT Handling Package (Optional on F SPORT): Adds an Adaptive Variable Suspension (AVS) and sharper chassis tuning for enthusiast-focused driving dynamics.

• Special Appearance Package: A highly limited, visually distinct special edition featuring unique styling accents.

Safety Technology

All 2026 models are upgraded to the standard Lexus Safety System+ 3.0 suite, which includes:

• Pre-Collision System with Pedestrian, Cyclist, and Motorcyclist Detection

• Full-Speed Dynamic Radar Cruise Control

• Lane Tracing Assist and Lane Departure Alert with Steering Assist

• Road Sign Assist

• Blind Spot Monitor with Rear Cross-Traffic Alert

An optional Technology Package on upper trims adds advanced driver assists like Traffic Jam Assist, Lane Change Assist, and Front Cross-Traffic Alert.