In this comparison, MG IM6 leads on motorway range, charging speed and city driving, while the Smart #5 leads on value for money and family practicality.
Choose the MG IM6 if...
Choose the Smart #5 if...
Our take
The MG IM6 leads in the most categories, but each car here has its strengths.
See the specification differences behind the verdict, with supporting figures for each advantage.
Compare the key specifications for your selected trims.
Size Comparison
Length
Width
Height
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | MG IM6100 Long Range | Smart #5Pro |
|---|---|---|
| Length | 4,904 mm | 4,695 mm |
| Width (mirrors folded) | 1,988 mm | 1,920 mm (better) |
| Width with mirrors out | 2,190 mm | 2,169 mm (better) |
| Height | 1,669 mm | 1,705 mm |
| Turning circle | 10.2 m | Not available |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 412 mm spare | 480 mm spare (better) |
Compare seating, child-seat mounting points, boot space and towing capacity.
Percentile ranks against UK EVs of the same body style.
MG IM6
Smart #5
| Specification | MG IM6 100 Long Range | Smart #5 Pro |
|---|---|---|
| Dimensions | ||
| Length | 4.90m | 4.70m-209mm |
| Width | 1.99m | 1.92m-68mm |
| Width (mirrors) | 2.19m | 2.17m-21mm |
| Height | 1.67m | 1.71m+36mm |
| Wheelbase | 2.95m | 2.90m-50mm |
| Ground Clearance | Not available | 190mm |
| Capacity | ||
| Boot (seats up) | 665L (better) | 630L |
| Boot (seats down) | 1640L (better) | 1530L |
| Frunk | 32L | 47L (better) |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 10.18m | Not available |
| Kerb Weight | 2,320kg | 2,200kg (better) |
| Towing Capacity | 1,500kg | 1,600kg (better) |
| Electric | ||
| Battery | 100kWh (better) | 76kWh |
| Range (WLTP) | 388 mi (better) | 288 mi |
| Max DC Charge | 396kW (better) | 150kW |
| Pricing | ||
| UK MSRP | £47,995 | £39,800 (better) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2025+ | 2025+ |
* MG IM6: 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.
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | MG IM6100 Long Range | Smart #5Pro |
|---|---|---|
| Official range (WLTP) | 388 miles (better) | 288 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 275 miles (better) | 202 miles |
| 10-80% rapid charge time | 17 min (better) | 30 min |
| Max rapid charge rate | 396 kW (better) | 150 kW |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | 182 Wh/km (better) | 185 Wh/km |
| Usable battery capacity | 96.5 kWh (better) | 76 kWh |
| Battery chemistry | NMC | LFP |
| Battery architecture | 800V | 800V |
| Heat pump | Standard (better) | Not standard |
Compare acceleration, power and drivetrain specifications for the selected trims.
See how UK motoring publications rate each car in their road tests.

MG IM6
100 Long Range

Smart #5
Pro
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.
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.
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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.
MG IM6 100 Long 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.
Tested 2025
Check the published battery warranty cover for each selected trim.
Get a quote
MG IM6
Smart #5
Active inventory from independent UK dealers.
MG IM6
Smart #5
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The MG IM6 costs £8,195 more than the Smart #5. For that premium it adds 101 miles more WLTP range, 246 kW faster peak rapid charging and 50 kW more power. On EVcarsguide's combined category scores, the MG IM6 comes out ahead overall.
The Smart #5 is £8,195 cheaper to buy. Running costs are almost identical - about £200 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Smart #5 comes out roughly £8,195 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
EVcarsguide estimates a real-world motorway range of about 275 miles for the MG IM6 and 202 miles for the Smart #5 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The MG IM6 goes roughly 73 miles further between charging stops. A rapid charge to 80% takes around 17 minutes in the MG IM6 and 30 in the Smart #5, so the MG IM6 loses less time at each stop. That makes the MG IM6 the stronger long-distance car.
The Smart #5 is the easier car for tight UK car parks: it is 68 mm narrower than the MG IM6. In a standard 2,400 mm bay that leaves about 480 mm of total clearance for the Smart #5 and about 412 mm of total clearance for the MG IM6.
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the MG IM6 and 90% for the Smart #5. That gives the Smart #5 a modest edge in retained real-world range. The Smart #5's LFP-type pack tolerates daily 100% charging, while the MG IM6's NMC-type pack lasts longest kept to about 80% for everyday use. Both batteries carry a 8-year manufacturer warranty.
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare similarly sized and priced electric cars before finalising your shortlist.
More MG IM6 comparisons
More Smart #5 comparisons
EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
Explore other verified electric cars that may better suit the priorities this pair does not meet.
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .