Loading comparison
Mazda 6e vs Smart #5
Selected trimTakumiChange trim348 mi · 78 kWh · £38,995
At a glance
In this comparison, Mazda 6e leads on motorway range and running costs, while the Smart #5 leads on family practicality.
Which should you choose?
Choose the Mazda 6e if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you want the lowest running costs - from just 1.9p per mile on off-peak electricity
Choose the Smart #5 if...
- you have a family - it has the best combination of boot space, safety, and rear legroom
How we reached the recommendation
Verdict
Our take
The Mazda 6e edges ahead overall, but it's close - check which categories matter most to you.
Value
Mazda
6.8
Smart
6.4
Too close to call
Motorway RangeMazda
Mazda
6.2
Smart
2.7
FamilySmart
Mazda
6.5
Smart
9
Charging
Mazda
5
Smart
5
Too close to call
Cost Per MileMazda
Mazda
7.5
Smart
1.6
City Driving
Mazda
2.9
Smart
3.2
Too close to call
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.
Size Comparison
View:
Align by:
Mazda 6e
Smart #5
Length
Mazda 6e4,921mm
Smart #54,695mm-226mm
Width
Mazda 6e1,890mm-30mm
Smart #51,920mm
Height
Mazda 6e1,491mm-214mm
Smart #51,705mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Mazda 6eTakumi | Smart #5Pro |
|---|---|---|
| Length | 4,921 mm | 4,695 mm |
| Width (mirrors folded) | 1,890 mm (better) | 1,920 mm |
| Width with mirrors out | Not available | 2,169 mm |
| Height | 1,491 mm | 1,705 mm |
| Turning circle | 11.6 m | Not available |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 510 mm spare (better) | 480 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
How each stacks up
Percentile ranks against UK EVs of the same body style.
Mazda 6e
Not enough peers to make confident percentile claims.
Smart #5
- Boot space of 630 L is bigger than 90% of SUVs we track.
- One of 33 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
Full specifications
| Specification |  Mazda 6e Takumi |  Smart #5 Pro |
|---|---|---|
| Dimensions | ||
| Length | 4.92m | 4.70m-226mm |
| Width | 1.89m | 1.92m+30mm |
| Width (mirrors) | Not available | 2.17m |
| Height | 1.49m | 1.71m+214mm |
| Wheelbase | 2.90m | 2.90m+5mm |
| Ground Clearance | Not available | 190mm |
| Capacity | ||
| Boot (seats up) | 336L | 630L (better) |
| Boot (seats down) | Not available | 1530L |
| Frunk | 72L (better) | 47L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 11.6m | Not available |
| Kerb Weight | 2,027kg (better) | 2,200kg |
| Towing Capacity | Not available | 1,600kg |
| Electric | ||
| Battery | 78kWh (better) | 76kWh |
| Range (WLTP) | 348 mi (better) | 288 mi |
| Max DC Charge | 195kW (better) | 150kW |
| Pricing | ||
| UK MSRP | £38,995 (better) | £39,800 |
| Details | ||
| Body Style | Saloon | SUV |
| Available | 2026+ | 2025+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Mazda 6eTakumi | Smart #5Pro |
|---|---|---|
| Official range (WLTP) | 348 miles (better) | 288 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 290 miles (better) | 202 miles |
| 10-80% rapid charge time | 24 min (better) | 30 min |
| Max rapid charge rate | 195 kW (better) | 150 kW |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | Not available | 185 Wh/km |
| Usable battery capacity | 78 kWh (better) | 76 kWh |
| Battery chemistry | LFP | LFP |
| Battery architecture | 800V | 800V |
| Heat pump | Not available | Not standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
What the critics say
See how UK motoring publications rate each car in their road tests.
Mazda 6e
Takumi
Smart #5
Pro
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
Mazda 6e
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.
Safety & ownership confidence
Euro NCAP - Mazda 6e Takumi
Tested 2025
Adult Occupant93%
Child Occupant93%
Vulnerable Road Users74%
Safety Assist77%
Full result on euroncap.com (opens in new tab)
Euro NCAP - Smart #5 Pro
Tested 2025
Adult Occupant88%
Child Occupant93%
Vulnerable Road Users84%
Safety Assist92%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
Buying options
Get a quote
Mazda 6e
Used on AutoTraderLease deals
Smart #5
Used on AutoTraderLease deals
Frequently asked questions
Which is cheaper to own over 5 years, the Mazda 6e or the Smart #5?
The Mazda 6e is £805 cheaper to buy. The Mazda 6e is cheaper to charge, roughly £152 a year versus £200 for the Smart #5, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Mazda 6e comes out roughly £1,045 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the Mazda 6e and Smart #5 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 290 miles for the Mazda 6e and 202 miles for the Smart #5 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Mazda 6e goes roughly 88 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 24-30 minutes.
Which is easier to park and drive in town, the Mazda 6e or the Smart #5?
The Mazda 6e is the easier car for tight UK car parks: it is 30 mm narrower than the Smart #5. In a standard 2,400 mm bay that leaves about 510 mm of total clearance for the Mazda 6e and about 480 mm of total clearance for the Smart #5.
Which battery will hold up better as a used buy, the Mazda 6e or the Smart #5?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the Mazda 6e and 90% for the Smart #5. That is close enough that capacity loss should not decide between them. Both use LFP-type cells, which are happy charged to 100% every day.
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 Mazda 6e comparisons
More Smart #5 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 Mazda 6e and Smart #5 rank among the best family EVsWhere the Mazda 6e and Smart #5 rank among EVs under £40,000Where the Mazda 6e and Smart #5 rank among the best motorway EVsWhere the Mazda 6e and Smart #5 rank among the best city EVsWhere the Mazda 6e and Smart #5 rank among the cheapest EVs to runWhere the Mazda 6e and Smart #5 rank among EVs with the biggest boots
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 .