Kia Niro EV vs MG4 EV: 5-year cost to own (UK)
Over 5 years in the UK (12,000 mi/yr), as of August 6, 2026, the MG4 EV stays the cheaper car to own — about £34,207 vs £41,012 for the Kia Niro EV, a £6,805 difference over 5 years. The UK Electric Car Grant is shown separately, not in these totals.
UK Electric Car Grant: up to £3,750 off the price of an eligible new EV (RRP ≤ £37,000, applied by the dealer). Shown for reference; not included in the totals above. Source: GOV.UK Electric Car Grant.
Cheaper to own over 5 years · UKMG4 EV · £34,207 total · £6,805 less than the Kia Niro EV
Kia Niro EV vs MG4 EV — where the money goes
| Cost component | Electric · Kia Niro EV | Electric · MG4 EV |
|---|---|---|
| Depreciation (estimated) | £23,179 (57%) | £18,597 (54%) |
| Charging / fuel | £6,087 (15%) | £5,253 (15%) |
| ↳ of which charging loss | 12% (~£730) | 12% (~£630) |
| Maintenance | £1,500 (4%) | £1,500 (4%) |
| Insurance | £2,780 (7%) | £2,780 (8%) |
| Financing interest | £6,467 (16%) | £5,077 (15%) |
| Registration & fees | £1,000 (2%) | £1,000 (3%) |
| Total cost of ownership | £41,012 | £34,207 |
When does the Kia Niro EV win?
The MG4 EV wins decisively here — £6,805 cheaper over 5 years; at typical assumptions this isn't a close call.
No realistic annual distance flips this verdict — the MG4 EV stays the cheaper car at every distance we model.
What decides the Kia Niro EV vs MG4 EV verdict
The single biggest mover is depreciation: £23,179 on the Kia Niro EV against £18,597 on the MG4 EV, a £4,582 gap in the MG4 EV's favor — the largest slice of the £6,805 verdict. On the Kia Niro EV, depreciation alone is 57% of its £41,012 total; on the MG4 EV it is 54% of £34,207.
- Financing interest: Kia Niro EV £6,467, MG4 EV £5,077 — £1,390 more in the MG4 EV's favor.
- Energy: £6,087 of charging for the Kia Niro EV vs £5,253 of charging for the MG4 EV — £834 more in the MG4 EV's favor.
Not one major line falls the Kia Niro EV's way — every row of the table above the £82 noise floor lands in the MG4 EV's favor. At the dealer the Kia Niro EV starts £7,390 behind the MG4 EV; running costs claw back £585 of that, but the MG4 EV still ends £6,805 ahead. The MG4 EV is ahead by £2,492 after the first year and more than doubles that lead — £6,805 by year 5.
Kia Niro EV vs MG4 EV, side by side
Kia Niro EV
- 5-yr total cost
- £41,012
- Cost / month
- £684
- Cost / mile
- £0.68
- RRP
- £37,385
- Powertrain
- Electric
- Efficiency
- 26.3 kWh/100mi
MG4 EV
- 5-yr total cost
- £34,207
- Cost / month
- £570
- Cost / mile
- £0.57
- RRP
- £29,995
- Powertrain
- Electric
- Efficiency
- 22.7 kWh/100mi
- UK electricity
- 26.11p/kWh Ofgem
- UK petrol
- £1.53/litre GOV.UK