2010 Lexus GX 460

Second-generation model gets standard third-row seating

By Nina Russin

2010 Lexus GX 460

The GX is the mama bear of the Lexus sport-utility family, positioned between the compact RX and full-sized LX. Structurally, it’s closer to the LX: a body-on-frame truck designed to go off-road and tow heavy loads. While the unibody RX is engineered for optimum on-road performance, the GX has a two-speed transfer case for extreme off-road terrain.

The first-generation GX, that rolled out in 2002, gave active families a less expensive alternative to the high-luxury LX, with better fuel economy. The second-generation model that arrives in dealerships in January features a new V8 engine, similar to the base engine in the current Tundra pickup. A six-speed automatic transmission replaces a five-speed gearbox on the original model, for better fuel economy and launch characteristics.

EPA statistics for the new model show a two gallon-per-mile fuel economy improvement over the GX 470. On my 35 mile test drive, including surface streets, highway and dirt roads, the average gas mileage was 17.8 mpg: almost a gallon better than the EPA estimate.

Lexus’ kinetic dynamic suspension system gives the GX a surprisingly smooth ride. The system can electronically decouple the front and rear sway bars to maximize wheel travel on off-road trails. On paved roads, the technology prevents the chatter common to body-on-frame trucks with live rear axles. Read the rest of this entry »