Audi Q4 e-tron vs Audi Q5: Running Costs UK 2026
Last updated: July 2026 · Based on current UK fuel prices
Running a Audi Q4 e-tron in the UK costs approximately 7.9p per mile on home electricity, compared to 21.1p per mile for the Audi Q5 on petrol. At 10,000 miles per year with 80% home charging, the Audi Q4 e-tron saves approximately £1,003 per year in fuel costs.
At 10,000 miles/yr · 80% home charging
+£1,003/yr
The Audi Q4 e-tron saves you approximately £1,003 per year in fuel costs.
The Audi Q4 e-tron is also £5,000 cheaper to buy — no break-even required.
Audi Q5 fuel cost
21.1p/mile
33 MPG · 153.5p/litre
Audi Q4 e-tron (home tariff)
7.9p/mile
3.3 mi/kWh · 26.1p/kWh
Annual fuel cost comparison
The table below uses real-world efficiency figures for both vehicles and current UK fuel prices. EV costs assume 80% home charging (26.1p/kWh) and 20% public rapid charging (79p/kWh).
| Miles/yr | Audi Q5 | Audi Q4 e-tron | EV saves |
|---|---|---|---|
| 8,000 | £1,692 | £889 | +£802 |
| 10,000(avg) | £2,115 | £1,112 | +£1,003 |
| 12,000 | £2,538 | £1,334 | +£1,204 |
| 15,000 | £3,172 | £1,667 | +£1,505 |
| 20,000 | £4,229 | £2,223 | +£2,006 |
Petrol: 153.5p/litre · Home electricity: 26.1p/kWh · Public rapid: 79p/kWh
Audi Q4 e-tron cost by charging scenario
Charging behaviour has more impact on EV running costs than almost any other variable. Here's how the Audi Q4 e-tron compares at 10,000 miles per year across four scenarios:
Overnight EV tariff
£212/yr · 2.1p/mile
Standard home (80% home)
£1,112/yr · 11.1p/mile
Mixed (50% home)
£1,592/yr · 15.9p/mile
Public charging only
£2,394/yr · 23.9p/mile
Saving vs Audi Q5 at 10,000 mi/yr and 153.5p/litre.
Key specs
Audi Q4 e-tron
45 quattro
Audi Q5
45 TFSI quattro
Get a personalised result for your actual mileage
The figures above use national average fuel prices. Enter your postcode to get live local prices, or adjust the MPG and efficiency for your specific trim level.
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Frequently asked questions
How much does a Audi Q4 e-tron cost to run per mile in the UK?
At a standard UK home electricity rate of 26.1p/kWh (the Ofgem price cap unit rate for July–September 2026) and a real-world efficiency of 3.3 miles/kWh, the Audi Q4 e-tron costs approximately 7.9p per mile when charging at home. On a dedicated overnight EV tariff (around 7p/kWh) this falls to just 2.1p per mile. Relying entirely on public rapid charging — which averaged 79p/kWh in mid-2026 — raises the cost to 23.9p per mile.
Is the Audi Q4 e-tron cheaper to run than the Audi Q5?
Yes, for most UK drivers who can charge at home. The Audi Q5 costs approximately 21.1p per mile in petrol at current UK prices. At home on a standard tariff, the Audi Q4 e-tron costs 7.9p per mile — a saving of 13.2p per mile. At 10,000 miles per year with 80% home charging, the Audi Q4 e-tron saves around £1,003 per year in fuel costs.
Is the Audi Q4 e-tron more or less expensive to buy than the Audi Q5?
The Audi Q4 e-tron is actually cheaper to buy upfront than the Audi Q5 by approximately £5,000, meaning you save on both purchase price and running costs — there is no break-even calculation required.
What if I can't charge the Audi Q4 e-tron at home?
Without home charging, the economics change significantly. Relying on public rapid charging — which averaged 79p/kWh in mid-2026, up sharply from a couple of years ago — puts the Audi Q4 e-tron at 23.9p per mile — higher than the Audi Q5 at 21.1p per mile. EV running cost savings are almost entirely dependent on home charging access. Drivers without off-street parking should factor this in carefully.