Q8 e-tron vs Cayenne
Two makers, one class, one decision: the Q8 e-tron from Audi or the Cayenne from Porsche. This is less a contest than a fine-tuning exercise: both cover the same ground, with only a few meaningful gaps.
At a glance
- Engine & Performance Q8 e-tron wins
- Space & Practicality Tie
- Off-road & Towing Tie
- Engine & Performance4.8
- Engine & Performance2.8
Spec scores (0 to 10) are calculated from manufacturer specs against other models in the same class. See how the formula works. They are not reviews or user ratings.
Key Differences
-
The Q8 e-tron has 54 hp more power
This is a headline difference. With 402 hp to the Cayenne’s 348 hp, the Q8 e-tron has a lead that’s easy to see on paper and in practice. More power helps with merging, overtaking and climbing hills, especially with passengers and luggage on board.
-
The Q8 e-tron has 121 lb-ft more torque
Put simply, the Q8 e-tron is far ahead here: 490 lb-ft compared with 369 lb-ft. More torque means stronger pulling from low speeds, which you feel when accelerating from a stop or climbing grades.
Design & Size
Engine & Performance
Q8 e-tron leads
The Q8 e-tron dominates the engine & performance section, and the gaps are large enough to matter in daily use. Point to the Q8 e-tron for 54 hp more power. The Q8 e-tron’s extra output gives it more in reserve when you need to get up to speed. Net result: the Q8 e-tron leads this part of the comparison.
Total system output
Q8 e-tron: 402 hp Cayenne: 348 hp Power is only part of the story; weight, gearing and torque delivery shape how quick a car feels.
Torque
Q8 e-tron: 490 lb-ft Cayenne: 369 lb-ft The Q8 e-tron’s extra torque makes it more relaxed when fully loaded or towing.
Space & Practicality
Too close to call
The Q8 e-tron and the Cayenne match each other closely in this area. Bottom line for space & practicality: it’s a wash.
Off-road & Towing
Too close to call
You can skip ahead if off-road & towing was your deciding factor: the two are evenly matched here. For off-road & towing, pick whichever you prefer for other reasons.
Safety & Tech
In the safety & tech section, the key entries are names rather than numbers, so compare what the Q8 e-tron and the Cayenne list in the table below.
Full Specifications
Engine & Performance
| Spec | Q8 e-tron | Cayenne |
|---|---|---|
| Powertrain | Electric | Gas |
| Engine | Dual electric motors | 3.0L turbo V6 |
| Total system output | 402 hp (winner) | 348 hp |
| Torque | 490 lb-ft (winner) | 369 lb-ft |
| Transmission | 1-speed direct drive | 8-speed automatic (Tiptronic S) |
| Drivetrain | AWD (quattro) | AWD |
Fuel Economy & Range
| Spec | Q8 e-tron | Cayenne |
|---|---|---|
| Fuel economy (combined)EPA estimate where available | N/A (not specified) | 19 mpg |
| Fuel economy (city) | N/A (not specified) | 17 mpg |
| Fuel economy (highway) | N/A (not specified) | 23 mpg |
| Electric range | 272 mi Shortest electric range | N/A (not specified) |
Space & Practicality
| Spec | Q8 e-tron | Cayenne |
|---|---|---|
| Seats | 5 seats | 5 seats |
Off-road & Towing
| Spec | Q8 e-tron | Cayenne |
|---|---|---|
| Max towing | N/A (not specified) | 7,716 lb |
| AWD / 4WD available | Yes | Yes |
Safety & Tech
| Spec | Q8 e-tron | Cayenne |
|---|---|---|
| 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 Q8 e-tron if…
- you merge, overtake or climb hills with a full load (402 hp vs 348 hp)
- you often drive loaded up or with a trailer (490 lb-ft vs 369 lb-ft of torque)
- you’re comfortable with how Audi does things
Also Compared
Frequently Asked Questions
Which is better for most people, the Q8 e-tron or the Cayenne?
On the specs compared here, the Q8 e-tron makes more sense for most buyers; the Cayenne doesn’t win a single measurable area.
Executive Summary
I’ll be upfront: I have no stake in whether you buy Audi or Porsche. I only care that you end up with the right one of the Q8 e-tron and the Cayenne. The Q8 e-tron has 54 hp more power, and for most people that’s not a small thing.
A quick self-test: do you care more about engine & performance or the things a spec sheet can’t capture? The first answer means the Q8 e-tron, the second means the Cayenne.
My pick: the Q8 e-tron.
Personal opinion based on the data above. Your priorities may differ.