Which Toyota is the Lexus NX based on?
The Lexus NX is built on Toyota's GA-K platform, sharing its underpinnings with the Toyota RAV4 and related models. In practical terms, the RAV4 serves as the primary reference point for the NX's chassis.
Foundation: GA-K and TNGA
Understanding the GA-K platform
Under Toyota's New Global Architecture (TNGA), the GA-K platform is used for compact-to-midsize crossovers. It emphasizes a low center of gravity, improved rigidity, and shared powertrains across Lexus and Toyota models. The NX, introduced in its current generation in 2022, is built on GA-K, aligning it with the Toyota RAV4 in terms of engineering.
Models that share the GA-K platform
Several Toyota models use the same GA-K underpinnings as the NX. The two most prominent examples are the RAV4 and the Harrier. Using the same architecture allows engineering and production efficiencies while offering similar driving characteristics and safety tech.
- Toyota RAV4 — the compact SUV that shares GA-K with the NX.
- Toyota Harrier — a market-specific model that also sits on GA-K, reinforcing the NX's shared chassis.
With common hardware across these models, features such as suspension tuning, drivetrain options, and interior packaging are designed to be interchangeable where appropriate, while still allowing Lexus-specific refinement and luxury features.
Implications for buyers
For shoppers, this shared platform means that the NX benefits from Toyota's proven TNGA engineering, including strong crash safety structures, smooth ride quality, and hybrid technology options that align with other GA-K models. It also means service and parts availability is well established across dealer networks.
Summary
The Lexus NX is built on Toyota's GA-K platform, the same foundation used by the Toyota RAV4 and related models such as the Harrier. This shared architecture underpins the NX's chassis, safety tech, and drivetrain options, enabling Lexus to deliver luxury features on a proven Toyota base.
