Budget 2025 and EV Questions Answered

COMPARISON - VW Golf Petrol and an eGolf

- Assumptions & Baselines

Petrol Golf 1.4 TSI

• Real-world fuel economy: ~46.5 mpg (for 1.4 TSI across 2013–2020 models) Honest John+1

• UK petrol price (example): let’s assume £1.50 per litre

• 10,000 miles per year

EV VW Golf

• Charging cost under smart/overnight tariff: estimate 4p per mile (less with some current deals)

• From 2028, a new government “mileage-based tax” of 3p per mile applies (on top of charging cost) — based on recent policy announcements for EVs The Guardian+1

• 10,000 miles per year

- Cost Comparison: Annual Running Cost

Petrol Golf 1.4 TSI

1. Convert mpg to cost per mile using petrol cost:

   • 1 gallon ≈ 4.546 litres. At 46.5 mpg, the car uses 1 gallon per 46.5 miles → that’s 4.546 litres / 46.5 miles = 0.0977 litres per mile.

   • At £1.50 per litre, cost per mile = 0.0977 × 1.50 ≈ £0.1466 → ~14.7p per mile.

2. Annual cost for 10,000 miles: 10,000 × 0.1466 = £1,466 per year

EV 

• Charging cost: 4p per mile → for 10,000 miles = £400

• Government new EV-mileage charge (from 2028): 3p per mile → for 10,000 miles = £300

• Total annual cost: £400 + £300 = £700

- Summary: Running Cost for 10,000 miles / Year

Difference: The EV runs at roughly £766 less per year under those assumptions — about half the cost of the petrol car.

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