2025 Lexus RX 350h vs 2025 Buick Envision Avenir
12 mpg better and 9.8″ longer vs $3,725 less and 25 more lb-ft torque. That is the real fork. Key numbers: 246 vs 228 hp, 36 vs 24 MPG.
The RX 350h leads on 12 MPG better, 9.8″ longer. The Envision Avenir leads on $3,725 less, 25 more lb-ft torque. The spec table compares 6 specifications head to head.
Key Differences at a Glance
What's Actually Different
These two vehicles differ in 6 specifications.
Full Specification Comparison
Specifications and pricing reflect available data as of early 2026 and may not match current manufacturer figures. Always confirm details with an authorized dealer before making a purchase decision.
| Spec | 2025 Lexus RX 350h | 2025 Buick Envision Avenir |
|---|---|---|
| Pricing | ||
| MSRP | $51,425 | $47,700 |
| Powertrain | ||
| Engine | 2.5L I4 hybrid | 2.0L I4 Turbo |
| Horsepower | 246 hp | 228 hp |
| Torque | 233 lb-ft | 258 lb-ft |
| Transmission | continuously variable-speed automatic | 9-speed shiftable automatic |
| Drivetrain | AWD | AWD |
| Fuel Economy | ||
| City MPG | 37 | 22 |
| Highway MPG | 34 | 28 |
| Combined MPG | 36 | 24 |
| Fuel Tank | 17.2 gal | 16.1 gal |
| Annual Fuel Cost (EPA) | No published data | $1,800/yr |
| Dimensions | ||
| Curb Weight | 4,480 lbs | 4,085 lbs |
| Wheelbase | 112.2" | 109.0" |
| Length | 192.5" | 182.7" |
| Width | 75.6" | 74.1" |
| Height | 67.3" | 64.6" |
| Safety | ||
| NHTSA Overall | 5/5 stars | 5/5 stars |
| Warranty | ||
| Bumper-to-Bumper | 4yr/50k | 3yr/36k |
| Powertrain | 6yr/70k | 5yr/60k |
| Corrosion | 6yr/unlimited | 6yr/100k |
| Roadside Assistance | 4yr/unlimited | 5yr/60k |
Frequently Asked Questions
What is the price difference between the 2025 Lexus RX 350h and 2025 Buick Envision Avenir?
The 2025 Buick Envision Avenir starts at $47,700, $3,725 less than the 2025 Lexus RX 350h at $51,425. On a 60-month loan that is roughly $66/month. All prices are MSRP before destination and dealer fees.
Who should choose the 2025 Lexus RX 350h?
The 2025 Lexus RX 350h is the stronger pick when lower running costs matter to you, roughly $583/year less on fuel.
Who should choose the 2025 Buick Envision Avenir?
The 2025 Buick Envision Avenir is the stronger pick when you want to keep $3,725 in your pocket and the 2025 Buick Envision Avenir covers your needs.
Which gets better fuel economy, the 2025 Lexus RX 350h or 2025 Buick Envision Avenir?
The 2025 Lexus RX 350h rates 36 combined MPG, 12 MPG ahead.
Which is more powerful, the 2025 Lexus RX 350h or 2025 Buick Envision Avenir?
The 2025 Lexus RX 350h produces 246 hp, 18 more than the 2025 Buick Envision Avenir at 228 hp. The 2025 Buick Envision Avenir also leads in torque at 258 lb-ft vs 233 lb-ft. The 2025 Lexus RX 350h runs a 2.5L I4 hybrid; the 2025 Buick Envision Avenir uses a 2.0L I4 Turbo.
Is the 2025 Lexus RX 350h bigger than the 2025 Buick Envision Avenir?
The 2025 Lexus RX 350h is 9.8″ longer at 192.5″ vs 182.7″. The 2025 Lexus RX 350h has a 3.2″ longer wheelbase, which typically means more rear-seat legroom.
How do the warranties compare?
The Lexus RX comes with 4yr/50k bumper-to-bumper and 6yr/70k powertrain. The Buick Envision offers 3yr/36k bumper-to-bumper and 5yr/60k powertrain. Longer warranty coverage can offset higher maintenance costs over time.
Explore more: Lexus trims, Lexus RX trims, Buick trims, Buick Envision trims
- 2025 Lexus RX 350h Safety Ratings (NHTSA)
- 2025 Buick Envision Avenir Safety Ratings (NHTSA)
- Compare Fuel Economy (EPA)
The RX–Envision Decision
Cross-shopping midsize SUVs means weighing interior space, ride quality, and ownership costs. Here is how the RX and Envision compare. The $-3,725 gap adds up to $66/month on a 60-month loan. That is real money, so the pricier option needs to earn it with capabilities you will actually use.
What Powers Each Vehicle
The 2025 Lexus RX 350h runs a 2.5L I4 hybrid; the 2025 Buick Envision Avenir uses a 2.0L I4 Turbo. The 18 hp difference (246 vs 228) is marginal in daily driving. Both use AWD.
The Ownership Math
The 2025 Lexus RX 350h saves roughly $583/year on fuel at $3.50/gallon and 12,000 annual miles. Over five years, that is $2,915.
Living With the RX vs the Envision
The 2025 Lexus RX 350h weighs 395 lbs more. Heavier vehicles tend to feel more planted at highway speed but use more fuel and are harder to stop quickly.
The Decision
Choose the 2025 Lexus RX 350h when lower running costs matter to you, roughly $583/year less on fuel. Choose the 2025 Buick Envision Avenir when you want to keep $3,725 in your pocket and the 2025 Buick Envision Avenir covers your needs.
Specifications shown combine licensed third-party automotive data with official manufacturer, EPA, and NHTSA source material. 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 Buick or any dealership.