MG S9 (2026 onwards) | Expert Rating
Summary
The MG S9 – or MGS9 PHEV – is a seven-seat plug-in hybrid SUV and the largest offering in the MG UK range at the time of its arrival in Spring 2026.
Joining a growing large plug-in hybrid category that already includes the Hyundai Santa Fe and Mazda CX-80, as well as keenly-priced Chinese newcomers like the Omoda 9 and Chery Tiggo 9, the MG S9 is both longer and taller than the brand’s HS SUV.
“Space in the rear seats, which is the main reason you’d choose it over the HS, isn’t particularly great”, says Alastair Crooks of Auto Express, however adding that the SUV represents “extraordinary value for money.”
Parker’s Alan Taylor Jones adds that “mainstream rivals are better to drive” but the S9 feels more polished than Chinese newcomers like the Chery Tiggo 8 and Jaecoo 8. Electrifying.com’s Sam Burnett adds that the Hyundai Santa Fe and Kia Sorento are “objectively much nicer cars, but also much more expensive cars.”
As of June 2026, the MG S9 holds a New Car Expert Rating of B, with a score of 68%. While the SUV’s review scores are below average, this overall rating is helped by the car’s solid five-star safety credentials and a generous warranty.
S9 highlights
- Generous standard equipment list
- Fantastic value-for-money
- Spacious interior
S9 lowlights
- Rivals are more refined on the road
- Some cheaper interior finishes
- Sluggish infotainment
Key specifications
Body style: Large SUV
Engines: petrol plug-in hybrid
Price: From £34,205
Launched: Spring 2026
Last updated: N/A
Replacement due: TBA
Image gallery
Highlighted reviews and road tests from across the UK automotive media. Click any of the boxes to view. Reviews are rather sparse in number at the moment, but that is sure to change in the coming weeks.
Safety rating
Independent crash test and safety ratings from Euro NCAP
Adult protection: 84%
Child protection: 85%
Vulnerable road users: 74%
Safety assist: 77%
Eco rating
Independent economy and emissions ratings from Green NCAP
No eco rating
As of June 2026, the MG S9 has not been assessed by Green NCAP.
Running cost rating
Monthly cost of ownership data provided exclusively for The Car Expert by Clear Vehicle Data
| Fuel consumption | Average | Score |
| Plug-in hybrid models | 42 mpg | C |
| CO₂ output | Average | Score | Variation | Score |
| Plug-in hybrid models | 18 g/km | A |
| Battery range | Average | Score | Variation | Score |
| Plug-in hybrid models | 62 miles | D |
| Insurance group | Average | Score | Variation | Score |
| All models | 44 | E |
The MG S9 is a relatively expensive car to own and run, according to whole-life cost numbers provided exclusively to The Car Expert by our data partner, Clear Vehicle Data.
While the plug-in hybrid SUV’s combined fuel economy and electric-only battery range are competitive when compared to rivals of this size, the car’s predicted insurance premiums are towards the expensive end of the market.
Reliability rating
Reliability data provided exclusively for The Car Expert by MotorEasy
No reliability rating
As of June 2026, we don’t have enough reliability data on the MG S9 to generate a reliability rating.
The Car Expert’s reliability information is provided exclusively to us using workshop and extended warranty data from our partner, MotorEasy, sourced from both official dealerships and independent workshops.
As soon as MotorEasy has sufficient data on the S9, we’ll publish the results here.
Recalls
Official DVSA safety recalls that have been issued for the MG S9
As of June 2026, we are not aware of any DVSA vehicle safety recalls affecting the MG S9. However, recall information is updated regularly, so this may have changed.
You can check to see if your car has any outstanding recalls by visiting the DVLA website or contacting your local MG dealer.
Similar cars
If you’re looking at a new or used MG S9, you might also be interested in these alternatives
Audi Q7 | BMW X7 | Chery Tiggo 9 | Genesis GV80 | Hyundai Santa Fe | Kia Sorento | Land Rover Defender | Lexus RX | Mercedes-Benz GLE | Mercedes-Benz GLS | Nissan X-Trail | Peugeot 5008 | Porsche Cayenne | Range Rover | Range Rover Sport | SEAT Tarraco | Skoda Kodiaq | KGM Rexton | Suzuki Across | Volkswagen Touareg | Volvo XC90
More information
More news, reviews and information about the MG S9 at The Car Expert
Seven-seat MG S9 SUV debuts
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