2023 Lexus GX Performance

With only a single powertrain available, performance across the range is pretty much the same. The naturally aspirated 4.6-liter V8 engine develops 301 horsepower and 329 lb-ft, which allows the two-and-a-half-tonner to get from 0 to 60 in a modest 7.8 seconds from a standstill. This is slower than almost all rivals, but to judge the GX on acceleration figures alone is like judging a fish on its ability to climb a tree. Likewise, the midsize SUV is no speed demon with a limited top speed of just 110 mph. No, the GX is actually a capable off-roader, which is why the body-on-frame chassis and 4x4 drivetrain make so much sense.

The V8 torque and standard four-wheel drive have benefits when it comes to towing capacities, allowing the GX to tow up to 6,500 lbs in its most capable configuration, which is good, if not quite up to the level of the Discovery's 8,200 lbs.

The GX range is powered by a prehistoric 4.6-liter naturally aspirated V8 engine that develops only 301 hp and 329 lb-ft. Yes, there are modern four-cylinders that put these numbers to shame, and even Toyota's own Camry with its 3.5-liter V6 produces the same power output, but the GX is all about smoothness and durability. This engine may not be a modern rival to options from Land Rover, but it is proven to be reliable and hum around silently without disturbing occupants.

Unfortunately, while the engine may be capable of towing and off-roading, it certainly can't do so quickly. Getting around town isn't too much of a chore, assuming you aren't in a rush or don't mind watching the fuel gauge drop like a stone to the bottom of a lake. Passing on the highway is a challenge as well, with mild speed increases requiring not just loads of throttle, but a second mortgage on your house, too. An additional 50 hp would be welcomed by everyone but an accountant. The six-speed automatic shifts smoothly in the background, and feels decently responsive with fewer gears to hunt through than rivals.

According to the EPA, the 2023 Lexus GX will return gas mileage figures of 15/19/16 mpg city/highway/combined. It is still one of the worst gas guzzlers on the market, and the fact that it relies on premium gasoline doesn't help its case either. We averaged just over 16 mpg during our test drive period which spanned one week. By comparison, the luxurious powerhouse that is the Land Rover Discovery gets as much as 21 mpg combined. With a 23-gallon gas tank, the Lexus GX will be able to cover approximately 368 miles between visits to the pumps. That's very approximate, though, as anything but a light foot has a significant effect on fuel economy.