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Cadillac OPTIQ vs MG IM5
Selected trimPremium Sport AWD264 mi · 75 kWh · Not available
Selected trim75 Standard RangeChange trim304 mi · 75 kWh · £39,450
At a glance
In this comparison, Cadillac OPTIQ leads on motorway range, family practicality and charging speed, while the MG IM5 leads on value for money and city driving.
Which should you choose?
Choose the Cadillac OPTIQ if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you need the most family-friendly option with good safety and space
- you need the fastest charging of these options
Choose the MG IM5 if...
- you want the most for your money - best overall spec per pound
- you drive in the city - it's compact with an excellent turning circle
How we reached the recommendation
Verdict
Our take
The Cadillac OPTIQ leads in the most categories, but each car here has its strengths.
ValueMG
Cadillac
0
MG
5.1
Motorway RangeCadillac
Cadillac
3.6
MG
1.7
FamilyCadillac
Cadillac
6.8
MG
3.3
ChargingCadillac
Cadillac
4.4
MG
2.2
City DrivingMG
Cadillac
2.5
MG
4.1
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Key specifications
Compare the key specifications for your selected trims.
| Measure | Cadillac OPTIQPremium Sport AWD | MG IM575 Standard Range |
|---|---|---|
| Price | Not available | £39,450 |
| Official range | 264 miles | 304 miles (better) |
| Boot space | 500 L (better) | 457 L |
| 10-80% rapid charge | 30 min (better) | 65 min |
| 0-62 mph | 6.3 sec (better) | 6.8 sec |
Size Comparison
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Cadillac OPTIQ
MG IM5
Length
Cadillac OPTIQ4,826mm-105mm
MG IM54,931mm
Width
Cadillac OPTIQ1,912mm-48mm
MG IM51,960mm
Height
Cadillac OPTIQ1,651mm
MG IM51,474mm-177mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Cadillac OPTIQPremium Sport AWD | MG IM575 Standard Range |
|---|---|---|
| Length | 4,826 mm | 4,931 mm |
| Width (mirrors folded) | 1,912 mm (better) | 1,960 mm |
| Width with mirrors out | 2,134 mm | 2,077 mm (better) |
| Height | 1,651 mm | 1,474 mm |
| Turning circle | Not available | 10 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 488 mm spare (better) | 440 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Cadillac OPTIQPremium Sport AWD | MG IM575 Standard Range |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | Not available | 2 |
| Boot space (seats up) | 500 L (better) | 457 L |
| Boot space (seats down) | Not available | 1290 L |
| Frunk | Not available | 18 L |
| Towing capacity (braked) | Not available | 1,500 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
Cadillac OPTIQ
- At 4,826 mm, longer than 80% of SUVs we track.
- 2,946 mm wheelbase, longer than 80% of SUVs we track.
MG IM5
- One of 33 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- 9.98 m turning circle, tighter than 100% of saloon EVs in our database.
Full specifications
| Specification |  Cadillac OPTIQ Premium Sport AWD |  MG IM5 75 Standard Range |
|---|---|---|
| Dimensions | ||
| Length | 4.83m | 4.93m+105mm |
| Width | 1.91m | 1.96m+48mm |
| Width (mirrors) | 2.13m | 2.08m-57mm |
| Height | 1.65m | 1.47m-177mm |
| Wheelbase | 2.95m | 2.95m+4mm |
| Capacity | ||
| Boot (seats up) | 500L (better) | 457L |
| Boot (seats down) | Not available | 1290L |
| Frunk | Not available | 18L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | Not available | 9.98m |
| Kerb Weight | 2,377kg | 2,180kg (better) |
| Towing Capacity | Not available | 1,500kg |
| Electric | ||
| Battery | 75kWh | 75kWh |
| Range (WLTP) | 264 mi | 304 mi (better) |
| Max DC Charge | 150kW | 153kW (better) |
| Pricing | ||
| UK MSRP | Not available | £39,450 |
| Details | ||
| Body Style | SUV | Saloon |
| Available | 2026+ | 2025+ |
* MG IM5: 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 | Cadillac OPTIQPremium Sport AWD | MG IM575 Standard Range |
|---|---|---|
| Official range (WLTP) | 264 miles | 304 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 220 miles (better) | 217 miles |
| 10-80% rapid charge time | 30 min (better) | 65 min |
| Max rapid charge rate | 150 kW | 153 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | Not available | 175 Wh/km |
| Usable battery capacity | 75 kWh (better) | 73.5 kWh |
| Battery chemistry | NCMA | LFP |
| Battery architecture | 400V | 400V |
| Heat pump | Not available | Standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Cadillac OPTIQPremium Sport AWD | MG IM575 Standard Range |
|---|---|---|
| 0-62 mph | 6.3 sec (better) | 6.8 sec |
| Power | 227 kW (better) | 217 kW |
| Torque | 480 Nm (better) | 450 Nm |
| Drivetrain | AWD | RWD |
What the critics say
See how UK motoring publications rate each car in their road tests. One car has more review coverage than the other - we show that rather than guessing.
Cadillac OPTIQ
Premium Sport AWD
No critic reviews gathered yet for this car.
MG IM5
75 Standard Range
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
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 - Cadillac OPTIQ Premium Sport AWD
Tested 2025
Adult Occupant83%
Child Occupant81%
Vulnerable Road Users76%
Safety Assist74%
Full result on euroncap.com (opens in new tab)
Euro NCAP - MG IM5 75 Standard Range
MG IM5 75 Standard Range
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 | Cadillac OPTIQPremium Sport AWD | MG IM575 Standard Range |
|---|---|---|
| Battery warranty | Not available | 8 years |
| Battery warranty distance | Not available | 160,934 km |
Buying options
Get a quote
Cadillac OPTIQ
Used on AutoTraderLease deals
MG IM5
Used on AutoTraderLease deals
Frequently asked questions
What are the Cadillac OPTIQ and MG IM5 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 220 miles for the Cadillac OPTIQ and 217 miles for the MG IM5 - effectively matched, and both well below their WLTP figures because sustained high speed is the hardest case for an EV. A rapid charge to 80% takes around 30 minutes in the Cadillac OPTIQ and 65 in the MG IM5, so the Cadillac OPTIQ loses less time at each stop.
Which is easier to park and drive in town, the Cadillac OPTIQ or the MG IM5?
The Cadillac OPTIQ is the easier car for tight UK car parks: it is 48 mm narrower than the MG IM5. In a standard 2,400 mm bay that leaves about 488 mm of total clearance for the Cadillac OPTIQ and about 440 mm of total clearance for the MG IM5.
Which battery will hold up better as a used buy, the Cadillac OPTIQ or the MG IM5?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 89% battery health for the Cadillac OPTIQ and 90% for the MG IM5. That is close enough that capacity loss should not decide between them. The MG IM5's LFP-type pack tolerates daily 100% charging, while the Cadillac OPTIQ's NMC-type pack lasts longest kept to about 80% for everyday use.
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
Compare similarly sized and priced electric cars before finalising your shortlist.
More Cadillac OPTIQ comparisons
More MG IM5 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 Cadillac OPTIQ and MG IM5 rank among the best family EVsWhere the Cadillac OPTIQ and MG IM5 rank among the best motorway EVsWhere the Cadillac OPTIQ and MG IM5 rank among the best city EVsWhere the Cadillac OPTIQ and MG IM5 rank among the cheapest EVs to runWhere the Cadillac OPTIQ and MG IM5 rank among EVs with the biggest bootsWhere the Cadillac OPTIQ and MG IM5 rank among Best Used Electric Cars Under £10,000 (UK)
If neither is quite right
Explore other verified electric cars that may better suit the priorities this pair does not meet.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .