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Mazda 6e vs Smart #3
Selected trimTakumiChange trim348 mi · 78 kWh · £38,995
Selected trimProChange trim202 mi · 66 kWh · £33,960
At a glance
In this comparison, Mazda 6e leads on value for money, motorway range and family practicality, while the Smart #3 leads on city driving.
Which should you choose?
Choose the Mazda 6e if...
- you want the most for your money - best overall spec per pound
- 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
- you want the lowest running costs - from just 1.9p per mile on off-peak electricity
Choose the Smart #3 if...
- you need the best car for city driving and tight parking
How we reached the recommendation
Verdict
Our take
The Mazda 6e wins almost every category - it's the clear choice unless price is the deciding factor.
ValueMazda
Mazda
6.8
Smart
6.1
Motorway RangeMazda
Mazda
6.2
Smart
2.8
FamilyMazda
Mazda
6.5
Smart
5.7
ChargingMazda
Mazda
5
Smart
1.7
Cost Per MileMazda
Mazda
7.5
Smart
2.7
City DrivingSmart
Mazda
2.9
Smart
6
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
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Mazda 6e
Smart #3
Length
Mazda 6e4,921mm
Smart #34,400mm-521mm
Width
Mazda 6e1,890mm
Smart #31,844mm-46mm
Height
Mazda 6e1,491mm-65mm
Smart #31,556mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
Full specifications
| Specification |  Mazda 6e Takumi |  Smart #3 Pro |
|---|---|---|
| Dimensions | ||
| Length | 4.92m | 4.40m-521mm |
| Width | 1.89m | 1.84m-46mm |
| Height | 1.49m | 1.56m+65mm |
| Wheelbase | 2.90m | 2.79m-110mm |
| Capacity | ||
| Boot (seats up) | 336L | 370L (better) |
| Boot (seats down) | Not available | 1160L |
| Frunk | 72L (better) | 15L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 11.6m | Not available |
| Kerb Weight | 2,027kg | Not available |
| Electric | ||
| Battery | 78kWh (better) | 66kWh |
| Range (WLTP) | 348 mi (better) | 202 mi |
| Max DC Charge | 195kW (better) | 150kW |
| Pricing | ||
| UK MSRP | £38,995 | £33,960 (better) |
| Details | ||
| Body Style | Saloon | Coupe |
| Available | 2026+ | 2024+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Mazda 6eTakumi | Smart #3Pro |
|---|---|---|
| Official range (WLTP) | 348 miles (better) | 202 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 290 miles (better) | 189 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 (better) | 7.4 kW |
| Energy consumption | Not available | 172 Wh/km |
| Usable battery capacity | 78 kWh (better) | 66 kWh |
| Battery chemistry | LFP | NMC |
| Battery architecture | 800V | Not available |
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 #3
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
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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 #3 Pro
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 #3
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
Mazda 6e
No active listings.
Smart #3
- £27,3002025EV ExpertsView
Frequently asked questions
Is the Mazda 6e worth the extra £5,035 over the Smart #3?
The Mazda 6e costs £5,035 more than the Smart #3. For that premium it adds 146 miles more WLTP range and 45 kW faster peak rapid charging. The Smart #3 is not just cheaper - it also offers a 2.1s quicker 0-62mph time. On EVcarsguide's combined category scores, the Mazda 6e comes out ahead overall.
Which is cheaper to own over 5 years, the Mazda 6e or the Smart #3?
The Smart #3 is £5,035 cheaper to buy. The Mazda 6e is cheaper to charge, roughly £152 a year versus £192 for the Smart #3, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Smart #3 comes out roughly £4,835 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 #3 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 290 miles for the Mazda 6e and 189 miles for the Smart #3 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Mazda 6e goes roughly 101 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 #3?
The Smart #3 is the easier car for tight UK car parks: it is 46 mm narrower than the Mazda 6e. In a standard 2,400 mm bay that leaves about 556 mm of total clearance for the Smart #3 and about 510 mm of total clearance for the Mazda 6e.
Which battery will hold up better as a used buy, the Mazda 6e or the Smart #3?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the Mazda 6e and 84% for the Smart #3. That gives the Mazda 6e a modest edge in retained real-world range. The Mazda 6e's LFP-type pack tolerates daily 100% charging, while the Smart #3'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 Mazda 6e 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 #3 rank among the best family EVsWhere the Mazda 6e and Smart #3 rank among EVs under £40,000Where the Mazda 6e and Smart #3 rank among the best motorway EVsWhere the Mazda 6e and Smart #3 rank among the best city EVsWhere the Mazda 6e and Smart #3 rank among the cheapest EVs to runWhere the Mazda 6e and Smart #3 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 .