Volvo S90 trim comparison
2025 Volvo S90 B6 Ultra vs T8 Plus
The S90 B6 Ultra starts at $63,900 while the T8 Plus is $65,650. That $1,750 gap buys 6 meaningful differences.
This trim jump changes the engine from 2.0L I4 mild-hybrid to 2.0L I4 phev Turbo. Everything else is secondary to whether that powertrain difference matters for how you drive.
Start with the B6 Ultra if the 2.0L I4 mild-hybrid already feels sufficient for the way you drive. Step up to the T8 Plus only when the 2.0L I4 phev Turbo powertrain is the reason you are moving higher in the lineup.
Think about this as a monthly tradeoff, not just a sticker gap. The T8 Plus adds about $31/month on a typical 60-month loan, or around $1,860 more overall with interest. The payment only makes sense if that different powertrain matters to the way you actually drive, tow, or live with the vehicle.
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
Both the B6 Ultra and T8 Plus share the same 8-speed shiftable automatic transmission and identical wheelbase and body dimensions.
The upgrade math
You are paying $1,750 for 5 measurable differences, which works out to about $350 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. 6 specification differences, 1 shared.
Full Specification Comparison
Specifications reflect available data as of early 2025. Confirm details with an authorized dealer before purchasing.
| Spec | B6 Ultra | T8 Plus |
|---|---|---|
| Pricing | ||
| MSRP | $63,900 | $65,650 |
| Powertrain | ||
| Engine | 2.0L I4 mild-hybrid | 2.0L I4 phev Turbo |
| Horsepower | 295 hp | 455 hp |
| Torque | 310 lb-ft | 523 lb-ft |
| Transmission | 8-speed shiftable automatic | 8-speed shiftable automatic |
| Drivetrain | AWD | AWD |
| Fuel Economy | ||
| City MPG | 23 | 28 |
| Highway MPG | 31 | 31 |
| Combined MPG | 26 | 29 |
| Fuel Tank | 15.9 gal | 15.9 gal |
| Dimensions | ||
| Curb Weight | 4,296 lbs | 4,637 lbs |
| Wheelbase | 120.5" | 120.5" |
| Length | 200.4" | 200.4" |
| Width | 74.0" | 74.0" |
| Height | 57.2" | 57.2" |
| Warranty | ||
| Bumper-to-Bumper | 4yr/50k | 4yr/50k |
| Powertrain | 4yr/50k | 4yr/50k |
| Corrosion | 12yr/unlimited | 12yr/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.
2025 Volvo S90 B6 Ultra vs T8 Plus Questions Shoppers Ask
Use this page for the direct trim answer, then zoom back out to the Volvo S90 lineup, the Volvo brand hub, the Midsize Sedans, 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 2025 S90 T8 Plus cost than the B6 Ultra?
The T8 Plus starts at $65,650 compared to $63,900 for the B6 Ultra. That is a $1,750 difference, or approximately $31/month more on a 60-month loan.
Do the 2025 Volvo S90 B6 Ultra and T8 Plus have the same engine?
No. The B6 Ultra uses a 2.0L I4 mild-hybrid (295 hp, 310 lb-ft), while the T8 Plus has the 2.0L I4 phev Turbo (455 hp, 523 lb-ft). That is 160 more horsepower. Both pair with the same 8-speed shiftable automatic.
Do the 2025 S90 B6 Ultra and T8 Plus have the same drivetrain?
Yes. Both come with AWD as standard. The differences between these trims are in features and equipment, not drivetrain.
What warranty does the 2025 Volvo S90 come with?
All 2025 Volvo S90 trims, including both the B6 Ultra and T8 Plus, come with Volvo's standard warranty: 4yr/50k bumper-to-bumper and 4yr/50k powertrain coverage. Warranty does not vary by trim level.
Is the 2025 Volvo S90 T8 Plus worth $1,750 more than the B6 Ultra?
The $1,750 buys the 2.0L I4 phev Turbo. If that powertrain matters for how you drive, yes. If not, the B6 Ultra does the same job for less.
Which 2025 Volvo S90 trim gets better fuel economy, the B6 Ultra or the T8 Plus?
The T8 Plus is the more efficient of the two at 29 combined MPG, versus 26 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 $1,750 Gap
The T8 Plus earns its premium. For $1,750 more, you get the 2.0L I4 phev Turbo engine (+160 hp), making this one of the more straightforward upgrade decisions in the S90 lineup.
How the B6 Ultra and T8 Plus Feel Different
Moving from the B6 Ultra to the T8 Plus means a different engine entirely. That means 160 more horsepower and 213 more lb-ft of torque. That extra power shows up most clearly once you are out of town and asking more of the drivetrain.
Fuel Economy Comparison
The S90 T8 Plus gets 3 more combined MPG. At $3.50/gallon and 12,000 miles/year, that saves roughly $167 per year or $835 over five years of ownership.
The Short Version
$1,750 more for the S90 T8 Plus gets you 5 real differences. At $31/month more, the question is whether those specific changes are things you will use regularly.
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.
Volvo S90 B6 Ultra
Value-trim add-onsThese picks fit the B6 Ultra best when the goal is covering the daily-use gaps without paying up to the next trim.
Volvo S90 T8 Plus
Step-up trim add-onsThese picks suit the T8 Plus 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 2025 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 Volvo or any dealership.
Page updated 2026-03-18. Verify equipment, pricing, and regional availability with the manufacturer or dealer.