Lexus RX trim comparison
2026 Lexus RX 350 F SPORT Design vs 450h+ Luxury
The RX 350 F SPORT Design starts at $55,030 while the 450h+ Luxury is $71,860. That $16,830 gap buys 8 meaningful differences.
This is a powertrain and drivetrain change. The 450h+ Luxury gets the 2.5L I4 phev and AWD, so the $16,830 is buying a different driving experience, not just nicer trim.
This is a real hardware fork, not just a trim-label shuffle. The 350 F SPORT Design is enough if the 2.4L I4 Turbo with FWD already fits your routine; the 450h+ Luxury only earns the jump when the 2.5L I4 phev and AWD setup is the point of the upgrade.
Think about this as a monthly tradeoff, not just a sticker gap. The 450h+ Luxury adds about $296/month on a typical 60-month loan, or around $17,760 more overall with interest. If that different powertrain is not part of your real use case, the cheaper trim keeps more money in your pocket without changing the core experience you need.
Lock one trim, change the other side, and move through exact pair pages without resetting back to the full lineup every time.
Who notices the difference
The higher trim starts to make more sense when you are specifically shopping for the stronger powertrain, not just more trim content.
When both feel the same
The 350 F SPORT Design and 450h+ Luxury are mechanically identical where it counts: the same identical wheelbase and body dimensions.
The upgrade math
You are paying $16,830 for 7 measurable differences, which works out to about $2,404 per change.
Key Differences at a Glance
This is the fast read: price, power, efficiency, and the feature flips most likely to change the answer.
Every Difference, Side by Side
This is the full read behind the quick decision signals above: the complete hardware, comfort, and equipment story. 8 specification differences, 0 shared.
Full Specification Comparison
Specifications reflect available data as of early 2026. Confirm details with an authorized dealer before purchasing.
| Spec | 350 F SPORT Design | 450h+ Luxury |
|---|---|---|
| Pricing | ||
| MSRP | $55,030 | $71,860 |
| Powertrain | ||
| Engine | 2.4L I4 Turbo | 2.5L I4 phev |
| Horsepower | 275 hp | 304 hp |
| Torque | 317 lb-ft | No published data |
| Transmission | 8-speed shiftable automatic | continuously variable-speed automatic |
| Drivetrain | FWD | AWD |
| Fuel Economy | ||
| City MPG | 22 | 37 |
| Highway MPG | 29 | 34 |
| Combined MPG | 25 | 36 |
| Fuel Tank | 17.8 gal | 14.5 gal |
| Annual Fuel Cost (EPA) | $2,300/yr | $1,600/yr |
| Dimensions | ||
| Curb Weight | 4,155 lbs | 4,810 lbs |
| Wheelbase | 112.2" | 112.2" |
| Length | 192.5" | 192.5" |
| Width | 75.6" | 75.6" |
| Height | 67.3" | 67.3" |
| Safety | ||
| NHTSA Overall | 5/5 stars | 5/5 stars |
| Warranty | ||
| Bumper-to-Bumper | 4yr/50k | 4yr/50k |
| Powertrain | 6yr/70k | 6yr/70k |
| Corrosion | 6yr/unlimited | 6yr/unlimited |
| Roadside Assistance | 4yr/unlimited | 4yr/unlimited |
Data sources: licensed third-party automotive data, EPA fueleconomy.gov, NHTSA, and official manufacturer materials. Values marked est. are estimated.
2026 Lexus RX 350 F SPORT Design vs 450h+ Luxury Questions Shoppers Ask
Use this page for the direct trim answer, then zoom back out to the Lexus RX lineup, the Lexus brand hub, the Midsize SUVs, the how to pick a trim guide, or our mid-trim value research when you need the bigger shopping path behind this one matchup.
How much more does the 2026 RX 450h+ Luxury cost than the 350 F SPORT Design?
The 450h+ Luxury starts at $71,860 compared to $55,030 for the 350 F SPORT Design. That is a $16,830 difference, or approximately $296/month more on a 60-month loan.
Do the 2026 Lexus RX 350 F SPORT Design and 450h+ Luxury have the same engine?
No. The 350 F SPORT Design uses a 2.4L I4 Turbo (275 hp, 317 lb-ft), while the 450h+ Luxury has the 2.5L I4 phev (304 hp). That is 29 more horsepower. Both pair with the same 8-speed shiftable automatic.
Does the 2026 RX 350 F SPORT Design come with AWD?
No. The 350 F SPORT Design comes standard with FWD while the 450h+ Luxury has AWD. This affects traction, fuel economy, and curb weight.
Is the 2026 RX 350 F SPORT Design or 450h+ Luxury safer?
Both share the same Lexus RX platform with an overall 5-star NHTSA safety rating. Safety ratings are model-level and identical across trims. The trim choice affects comfort and features, not crash protection.
What warranty does the 2026 Lexus RX come with?
All 2026 Lexus RX trims, including both the 350 F SPORT Design and 450h+ Luxury, come with Lexus's standard warranty: 4yr/50k bumper-to-bumper and 6yr/70k powertrain coverage. Warranty does not vary by trim level.
Is the 2026 Lexus RX 450h+ Luxury worth $16,830 more than the 350 F SPORT Design?
The 450h+ Luxury changes both the engine and drivetrain for $16,830 more. That is a hardware upgrade, not just a feature bump.
Which 2026 Lexus RX trim gets better fuel economy, the 350 F SPORT Design or the 450h+ Luxury?
The 450h+ Luxury is the more efficient of the two at 36 combined MPG, versus 25 for the other trim. That matters most if you are balancing running costs against the extra power, drivetrain, or comfort equipment tied to the pricier trim.
The Full Story Behind This Price Gap
Use the direct answer above for this exact matchup, then use these guides to understand whether you are really looking at a feature step-up, a package shuffle, or the point where the lineup starts changing in a meaningful way.
Breaking Down the $16,830 Gap
The 450h+ Luxury earns its premium. For $16,830 more, you get the 2.5L I4 phev engine (+29 hp) and AWD, making this one of the more straightforward upgrade decisions in the RX lineup.
How the 350 F SPORT Design and 450h+ Luxury Feel Different
Moving from the 350 F SPORT Design to the 450h+ Luxury means a different engine entirely. AWD on the 450h+ Luxury means better grip in bad weather. If you live somewhere with mild winters, the 350 F SPORT Design's FWD may be fine.
Fuel Economy Comparison
The RX 450h+ Luxury gets 11 more combined MPG. At $3.50/gallon and 12,000 miles/year, that saves roughly $513 per year or $2,565 over five years of ownership.
The Short Version
The RX 450h+ Luxury costs $16,830 more than the 350 F SPORT Design (about $296/month more on a 60-month loan). That buys 7 meaningful changes at $2,404 per change. Whether that trade-off is worth it depends on which features matter to your daily driving.
Trim-Matched Accessories
These add-ons are split by trim intent so the recommendations follow the actual use case, not just the same repeated product block.
Lexus RX 350 F SPORT Design
Value-trim add-onsThese picks fit the 350 F SPORT Design best when the goal is covering the daily-use gaps without paying up to the next trim.
Lexus RX 450h+ Luxury
Step-up trim add-onsThese picks suit the 450h+ Luxury when you want the accessories to match the nicer cabin, broader utility, or more premium use case.
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Specifications shown combine licensed third-party automotive data with official manufacturer, EPA, and NHTSA source material for the 2026 model year. Actual pricing, features, and availability may vary by region and dealer. Always confirm details with an authorized dealer before making a purchase decision. TrimAtlas is not affiliated with Lexus or any dealership.
Page updated 2026-03-18. Verify equipment, pricing, and regional availability with the manufacturer or dealer.