A6 e-tron vs S90
The A6 e-tron and the S90 are aimed squarely at each other: same class, different badges. Think of these two as neighbors: the overlap is large and the gaps are few.
At a glance
- Engine & Performance A6 e-tron wins
- Space & Practicality Tie
- Off-road & Towing Tie
Key Differences
-
The A6 e-tron has 80 hp more power
Here the A6 e-tron pulls well ahead of the S90, with 375 hp compared to 295 hp. The A6 e-tron’s extra output gives it more in reserve when you need to get up to speed.
Design & Size
Engine & Performance
A6 e-tron leads
Few areas are as clear-cut as this one: the A6 e-tron leads the engine & performance section with room to spare. The A6 e-tron comes with 80 hp more power. More power helps with merging, overtaking and climbing hills, especially with passengers and luggage on board. For engine & performance, the A6 e-tron is the one to beat.
Total system output
A6 e-tron: 375 hp S90: 295 hp Power is only part of the story; weight, gearing and torque delivery shape how quick a car feels.
Space & Practicality
Too close to call
The space & practicality specs are close enough that neither gets the point. Either car will serve you equally well on space & practicality.
Off-road & Towing
Too close to call
Swap one for the other and you’d lose nothing on off-road & towing. If off-road & towing was going to be your tiebreaker, you’ll need a different one.
Safety & Tech
Here the spec sheet speaks in model names and types. Compare the A6 e-tron and the S90 row by row in the table below.
Full Specifications
Engine & Performance
| Spec | A6 e-tron | S90 |
|---|---|---|
| Powertrain | Electric | Gas (48V mild hybrid) |
| Engine | Single rear electric motor | 2.0L turbo- and supercharged I4 |
| Total system output | 375 hp (winner) | 295 hp |
| Torque | N/A (not specified) | 310 lb-ft |
| Transmission | 1-speed direct drive | 8-speed automatic |
| Drivetrain | RWD (quattro AWD available) | AWD |
Fuel Economy & Range
| Spec | A6 e-tron | S90 |
|---|---|---|
| Fuel economy (combined)EPA estimate where available | N/A (not specified) | 26 mpg |
| Fuel economy (city) | N/A (not specified) | 23 mpg |
| Fuel economy (highway) | N/A (not specified) | 31 mpg |
Space & Practicality
| Spec | A6 e-tron | S90 |
|---|---|---|
| Seats | 5 seats | 5 seats |
Off-road & Towing
| Spec | A6 e-tron | S90 |
|---|---|---|
| AWD / 4WD available | Yes | Yes |
Safety & Tech
| Spec | A6 e-tron | S90 |
|---|---|---|
| Basic warranty | 4 yr / 50,000 mi | 4 yr / 50,000 mi |
“N/A” means the manufacturer does not specify the value or we could not confirm it. Figures marked “manufacturer rating” are the maker’s own claims, not our measurements.
Which One Should You Buy?
Choose the A6 e-tron if…
- you want more power (375 hp vs 295 hp)
- you already know your way around Audi’s products
Also Compared
Frequently Asked Questions
Which is better for most people, the A6 e-tron or the S90?
On the specs compared here, the A6 e-tron makes more sense for most buyers; the S90 doesn’t win a single measurable area.
Executive Summary
Here’s my take on Audi’s A6 e-tron versus Volvo’s S90. Start with the headline difference (the A6 e-tron has 80 hp more power), and a lot of the decision falls into place.
The A6 e-tron is built for people who weigh engine & performance heavily, and the S90 for people who weigh the things a spec sheet can’t capture.
My pick: the A6 e-tron.
Personal opinion based on the data above. Your priorities may differ.