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BMW i4 vs MG Cyberster
Selected trimGTChange trim275 mi · 77 kWh · £60,245
At a glance
In this comparison, BMW i4 leads on value for money, family practicality and charging speed, while the MG Cyberster leads on city driving.
Which should you choose?
Choose the BMW i4 if...
- you want the most for your money - best overall spec per pound
- you need the most family-friendly option with good safety and space
- you need the fastest charging of these options
- you want the lowest running costs - from just 2.2p per mile on off-peak electricity
Choose the MG Cyberster if...
- you need the best car for city driving and tight parking
How we reached the recommendation
Verdict
Our take
The BMW i4 leads in the most categories, but each car here has its strengths.
ValueBMW
BMW
5.9
MG
3.2
Motorway Range
BMW
4.1
MG
3.7
Too close to call
FamilyBMW
BMW
6.4
MG
1.2
ChargingBMW
BMW
3.7
MG
3
Cost Per MileBMW
BMW
4.1
MG
2.5
City DrivingMG
BMW
3.2
MG
4
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
BMW i4
eDrive40 M Sport
- £6,840 cheaper
- 91 miles more WLTP range
- 221 litres more boot space
- 50 kW faster rapid charging
- 3 more seats
- 1600 kg more towing capacity
Key specifications
Compare the key specifications for your selected trims.
| Measure | BMW i4eDrive40 M Sport | MG CybersterGT |
|---|---|---|
| Price | £53,405 (better) | £60,245 |
| Official range | 367 miles (better) | 275 miles |
| Boot space | 470 L (better) | 249 L |
| 10-80% rapid charge | 31 min (better) | 38 min |
| 0-62 mph | 5.7 sec | 3.2 sec (better) |
Size Comparison
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BMW i4
MG Cyberster
Length
BMW i44,783mm
MG Cyberster4,535mm-248mm
Width
BMW i41,852mm-61mm
MG Cyberster1,913mm
Height
BMW i41,448mm
MG Cyberster1,329mm-119mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BMW i4eDrive40 M Sport | MG CybersterGT |
|---|---|---|
| Length | 4,783 mm | 4,535 mm |
| Width (mirrors folded) | 1,852 mm (better) | 1,913 mm |
| Width with mirrors out | 2,073 mm (better) | 2,110 mm |
| Height | 1,448 mm | 1,329 mm |
| Turning circle | 12.5 m | Not available |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 548 mm spare (better) | 487 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BMW i4eDrive40 M Sport | MG CybersterGT |
|---|---|---|
| Seats | 5 (better) | 2 |
| Boot space (seats up) | 470 L (better) | 249 L |
| Boot space (seats down) | 1290 L | Not available |
| Frunk | 0 L | 0 L |
| Towing capacity (braked) | 1,600 kg (better) | 0 kg |
Full specifications
| Specification |  BMW i4 eDrive40 M Sport |  MG Cyberster GT |
|---|---|---|
| Dimensions | ||
| Length | 4.78m | 4.54m-248mm |
| Width | 1.85m | 1.91m+61mm |
| Width (mirrors) | 2.07m | 2.11m+37mm |
| Height | 1.45m | 1.33m-119mm |
| Wheelbase | 2.86m | 2.69m-166mm |
| Ground Clearance | 125mm | Not available |
| Capacity | ||
| Boot (seats up) | 470L (better) | 249L |
| Boot (seats down) | 1290L | Not available |
| Seats | 5 (better) | 2 |
| Practicality | ||
| Turning Circle | 12.5m | Not available |
| Kerb Weight | 2,125kg | 1,985kg (better) |
| Towing Capacity | 1,600kg (better) | Not available |
| Electric | ||
| Battery | 83.9kWh (better) | 77kWh |
| Range (WLTP) | 367 mi (better) | 275 mi |
| Max DC Charge | 200kW (better) | 150kW |
| Pricing | ||
| UK MSRP | £53,405 (better) | £60,245 |
| Details | ||
| Body Style | Saloon | Roadster |
| Available | 2021–2026 | 2024+ |
* BMW i4: Launch figures. Cars built from July 2024 (facelift) have 81.3 kWh usable, 205 kW DC charging and up to 373 miles WLTP.
* MG Cyberster: Not yet Euro NCAP tested as of 2026-05. Limited-production / halo / pre-launch / new-brand models are typically rated some time after general sale.
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BMW i4eDrive40 M Sport | MG CybersterGT |
|---|---|---|
| Official range (WLTP) | 367 miles (better) | 275 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 261 miles (better) | 229 miles |
| 10-80% rapid charge time | 31 min (better) | 38 min |
| Max rapid charge rate | 200 kW (better) | 150 kW |
| Home AC charging | 11 kW (better) | 7 kW |
| Energy consumption | 160 Wh/km | Not available |
| Usable battery capacity | 80.7 kWh (better) | 74.4 kWh |
| Battery chemistry | NMC | NMC |
| Battery architecture | 400V | Not available |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BMW i4eDrive40 M Sport | MG CybersterGT |
|---|---|---|
| 0-62 mph | 5.7 sec | 3.2 sec (better) |
| Power | 250 kW | 375 kW (better) |
| Torque | 430 Nm | 725 Nm (better) |
| Drivetrain | RWD | AWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
BMW i4
eDrive40 M Sport
8.8/10
average across 6 reviews
- Electrifying.com10/10
- Auto Express4.5/5
- DrivingElectric4.5/5
MG Cyberster
GT
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
BMW i4
All 3 videos
Reviews and videos discuss each model overall; the specifications above apply to your selected trims.
Prices & deals
Calculate your real costs
For a useful running-cost comparison, factor in your mileage, charging access and current petrol or diesel car alongside the EV estimate.
Compare with petrol or diesel
Compare purchase price, energy, road tax and maintenance with a petrol or diesel alternative.
Calculate company-car tax
Work out monthly Benefit-in-Kind using current and future HMRC rates.
Cost per mile
Compare EV charging costs per mile with petrol and diesel using your charging options.
Check a lease quote
Assess the effective monthly cost alongside the list price and expected depreciation.
Safety & ownership confidence
Euro NCAP - BMW i4 eDrive40 M Sport
Tested 2022
Adult Occupant87%
Child Occupant87%
Vulnerable Road Users71%
Safety Assist64%
Full result on euroncap.com (opens in new tab)
Euro NCAP - MG Cyberster GT
MG Cyberster GT
Not yet Euro NCAP tested as of 2026-05. Limited-production / halo / pre-launch / new-brand models are typically rated some time after general sale.
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BMW i4eDrive40 M Sport | MG CybersterGT |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 160,934 km (better) | 80,000 km |
What owners say
Aggregated from UK owner forums and communities - the things you only learn after living with the car.
BMW i4
eDrive40 M Sport
Owners love
- Owners praise the composed ride, quiet cabin and BMW build quality, and many compare it favourably with the Tesla Model 3 for comfort.
- The eDrive40 is widely seen as the sweet spot: rear-wheel drive, lighter than the M50 and with the most range.
- Many owners report around 280 to 300 miles in mild weather from an eDrive40, and efficiency of around 4 miles per kWh on gentle runs.
Watch out for
- Winter range falls a long way, with several owners reporting around 180 to 220 miles in cold, wet weather.
- The rear seats are tight for tall adults, the doors are small and the floor is raised by the battery.
- It is heavy for its size, at about 2.1 to 2.3 tonnes, which owners feel in hard cornering and in efficiency.
Owner tips
- Sit in the back on the test drive if tall adults will use the rear seats regularly.
- Check the tyres and their brand closely; budget for a set if they are low, and prefer smaller wheels for range.
MG Cyberster
GT
Owners love
- Striking design with Corvette C8 and F-Type influences that attracts attention and looks better in person than photos
- Exceptional value at £54,995-£59,995 for dual-motor GT spec with 503hp, 535lb-ft torque, and 3.2s 0-60 acceleration—cheaper than comparable Porsche and BMW roadsters
- Well-built interior with quality materials (leather and Alcantara) and excellent cabin fit and finish rivaling premium German manufacturers
Watch out for
- Electrically operated scissor doors are painfully slow to operate (around 10 seconds each way) with overly sensitive sensors that frustrate owners
- Poor accommodation for taller drivers with excessively high seating position—6'3" reviewer struggled to fit comfortably with limited headroom and legroom
- Excessive weight at 1,900-1,985kg significantly impacts handling dynamics on winding roads with under-damped vertical movements and noticeable body shimmy
Owner tips
- If taller than 6 feet or have mobility concerns, test drive carefully to assess seating position, headroom, and scissor door usability before purchasing
- Position this car as a GT convertible cruiser (more comparable to BMW Z4 M40i or F-Type) rather than a lightweight sports car like MX-5 or Boxster for realistic expectations
Buying options
Get a quote
BMW i4
Used on AutoTraderLease deals
MG Cyberster
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BMW i4
- £28,9502023Car360View
- £25,6992024Car360View
- £24,5582023Car360View
MG Cyberster
No active listings.
Frequently asked questions
Is the MG Cyberster worth the extra £6,840 over the BMW i4?
The MG Cyberster costs £6,840 more than the BMW i4. For that premium it adds 125 kW more power and a 2.5s quicker 0-62mph time. The BMW i4 is not just cheaper - it also offers 91 miles more WLTP range, 50 kW faster peak rapid charging and 221 litres more boot space. On EVcarsguide's combined category scores, the BMW i4 comes out ahead overall.
Which is cheaper to own over 5 years, the BMW i4 or the MG Cyberster?
The BMW i4 is £6,840 cheaper to buy. Running costs are almost identical - about £176 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the BMW i4 comes out roughly £6,920 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the BMW i4 and MG Cyberster like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 261 miles for the BMW i4 and 229 miles for the MG Cyberster - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The BMW i4 goes roughly 32 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 31-38 minutes.
Which is easier to park and drive in town, the BMW i4 or the MG Cyberster?
The BMW i4 is the easier car for tight UK car parks: it is 61 mm narrower than the MG Cyberster. In a standard 2,400 mm bay that leaves about 548 mm of total clearance for the BMW i4 and about 487 mm of total clearance for the MG Cyberster.
Which battery will hold up better as a used buy, the BMW i4 or the MG Cyberster?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the BMW i4 and 84% for the MG Cyberster. That is close enough that capacity loss should not decide between them. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation. Both batteries carry a 8-year manufacturer warranty.
Go deeper on each car
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare against other rivals
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More BMW i4 comparisons
See both cars in our rankings
EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
Where the BMW i4 and MG Cyberster rank among the best motorway EVsWhere the BMW i4 and MG Cyberster rank among the best city EVsWhere the BMW i4 and MG Cyberster rank among the cheapest EVs to runWhere the BMW i4 and MG Cyberster rank among EVs with the biggest bootsWhere the BMW i4 and MG Cyberster rank among Best Used Electric Cars Under £10,000 (UK)Where the BMW i4 and MG Cyberster rank among Best Used Electric Cars Under £15,000 (UK)
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Further reading
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Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .