Introduction
When comparing mid-size SUVs, the 2018 Toyota Highlander and Lexus RX 350 are two strong contenders. Both offer comfort, reliability, and practicality—but they serve slightly different needs. If you’re wondering which one better suits your lifestyle, this in-depth comparison will help you make an informed decision. We’ll look at everything from driving performance and interior comfort to resale value and long-term ownership costs. Whether you prioritize space, fuel efficiency, or a more refined feel, this guide will break down the key differences between the 2018 Toyota Highlander and Lexus RX 350.
Overview of the 2018 Toyota Highlander and Lexus RX 350
The 2018 Toyota Highlander and Lexus RX 350 may share some DNA—after all, Lexus is Toyota’s luxury arm—but they cater to different types of drivers.
The Highlander is a practical, family-focused SUV with seating for up to eight passengers. It emphasizes space, versatility, and value. The RX 350, on the other hand, leans into comfort and refinement. It offers premium materials, a smoother ride, and a more upscale experience, but with less passenger space and cargo room.
While the Highlander attracts families and those who want more room for everyday tasks or road trips, the RX 350 is ideal for drivers seeking a quieter, more luxurious ride, often with fewer passengers on board.
Performance and Driving Experience
Both vehicles offer a comfortable drive, but the feeling behind the wheel is quite different. The Highlander feels robust and ready for busy family life, while the RX 350 delivers a smoother, quieter, and more insulated experience.
Handling and Suspension Differences
The 2018 Lexus RX 350 shines when it comes to handling and ride comfort. Its suspension is tuned for a cushioned drive, gliding over bumps and rough roads with ease. The steering is lighter, making it a breeze for city driving or highway cruising.
The Highlander is no slouch either, offering stable handling and confident road manners. However, it feels a bit more utilitarian. Its suspension is firmer, which can result in a slightly bumpier ride, especially when the vehicle is fully loaded.
Fuel Economy and Engine Options
Both SUVs come with a 3.5-liter V6 engine, but there are slight variations in tuning and efficiency. The Highlander produces around 295 horsepower, while the RX 350 delivers about 290. On paper, they’re similar, but the RX 350 feels smoother in acceleration thanks to its refined transmission.
Fuel efficiency is better in the RX 350, which gets an EPA-estimated 20 mpg city and 27 mpg highway. The Highlander trails slightly with around 20 mpg city and 26 mpg highway. The difference is minor, but it’s worth considering if you have a long commute or prioritize fuel savings.
Interior Comfort and Space
One of the biggest differences between the 2018 Toyota Highlander and Lexus RX 350 is the interior layout and comfort level.
The Highlander’s cabin is roomy, practical, and designed with families in mind. It offers three rows of seating, allowing for seven to eight passengers, depending on the configuration. Materials are durable and easy to clean, which is great for families with kids or pets.
The RX 350, in contrast, feels more like a luxury lounge on wheels. It seats five comfortably and is best suited for smaller households or solo drivers who value style over space. The leather seats, soft-touch surfaces, and sound insulation make it a more relaxing environment.
Infotainment and Connectivity Features
In terms of technology, both models offer useful features, but the user experience differs. The Highlander features a simple, user-friendly infotainment system with standard touchscreen, navigation (on higher trims), and smartphone integration.
The RX 350 adds a bit more sophistication, with an available 12.3-inch display, premium audio options, and a more refined (though slightly more complex) interface. While it looks sleek, some drivers may find Lexus’s touchpad system less intuitive than Toyota’s simpler setup.
Safety Features and Ratings
Safety is a strong suit for both the 2018 Toyota Highlander and Lexus RX 350. Each comes packed with advanced driver-assistance features and excellent safety ratings.
The Highlander includes Toyota Safety Sense P (TSS-P) as standard, which features adaptive cruise control, lane departure alert, pedestrian detection, and automatic emergency braking. It received high marks from both NHTSA and IIHS for overall safety.
The RX 350 also comes with Lexus Safety System+, offering a similar suite of features. It, too, scored top marks in crash tests, making it a secure choice for daily commuting or family travel. The main difference lies in the feel—Lexus delivers a slightly more serene experience, with noise insulation enhancing the sense of safety and calm.
Reliability and Long-Term Ownership Costs
Both Toyota and Lexus are known for building long-lasting vehicles, and the 2018 Highlander and RX 350 are no exception. Maintenance costs are reasonable, and both models tend to hold up well over time.
That said, the RX 350 edges ahead slightly in predicted reliability scores. Lexus vehicles benefit from meticulous build quality and top-tier components, which can translate to fewer repairs as the years go by.
However, Toyota’s broader availability of parts and simpler systems can make repairs more affordable when needed. In terms of total ownership cost, the Highlander is more budget-friendly, but the RX 350 offers a more premium experience with fewer long-term headaches.
Price and Value for Money in 2025
Now that both vehicles are seven years old, their pricing in the used market has stabilized. The 2018 Toyota Highlander generally costs less than the RX 350, both in upfront price and ongoing costs.
The Highlander’s resale value remains strong, especially for well-maintained, low-mileage models. It’s often priced more competitively, making it a great option for families looking to get the most space and reliability for their budget.
The RX 350, although more expensive, holds its value remarkably well for a luxury SUV. Its refined ride, upscale feel, and Lexus reputation make it a desirable used vehicle. For buyers who prioritize comfort and luxury without diving into new-car pricing, the RX 350 is still a smart choice.
Conclusion
Choosing between the 2018 Toyota Highlander and Lexus RX 350 ultimately depends on your lifestyle and priorities. The Highlander is practical, spacious, and family-friendly—ideal for those who need more seating and cargo space. The RX 350, while more expensive, offers a refined driving experience, upscale comfort, and long-term reliability.
Both SUVs have proven themselves as dependable and capable, making either a smart choice in today’s used market. If you value utility and cost-efficiency, go for the Highlander. If comfort and elegance matter more, the RX 350 will likely make you happier behind the wheel. Either way, you’re getting a solid vehicle that still holds strong in 2025.
FAQ
Q1: Is the 2018 Lexus RX 350 more reliable than the Toyota Highlander?
Yes, generally speaking. While both vehicles are highly reliable, the RX 350 often scores slightly higher in long-term reliability due to Lexus’s premium build standards.
Q2: Which SUV is more fuel-efficient: Toyota Highlander or Lexus RX 350 (2018)?
The Lexus RX 350 has a slight edge in fuel economy, especially on the highway, though the difference is small.
Q3: What are the key differences between the 2018 Highlander and RX 350 interiors?
The Highlander focuses on space and practicality with seating for up to eight, while the RX 350 offers a more luxurious, quiet, and upscale interior for five.
Q4: Is the 2018 Lexus RX 350 worth the extra cost over the Toyota Highlander?
It depends on what you value. If you want luxury and comfort, the RX 350 is worth the investment. If space and affordability matter more, the Highlander is a better fit.
