Cut Your Fuel Costs

I'm spending too much on fuel and I want to work out where I can realistically cut back. Here are my details:

- My car: [make, model, year, and fuel type — e.g. 2019 Vauxhall Corsa 1.4 petrol]
- Roughly how many miles I drive per week: [e.g. 120]
- What I mainly use the car for: [e.g. commuting 25 miles each way, school runs, weekend errands, a mix of all three]
- How much I think I spend on fuel each month: £[amount, or "I'm not sure — please estimate"]
- Where I usually fill up: [e.g. BP, Shell, Tesco, wherever's nearest]
- My typical driving style: [e.g. mostly town driving with lots of stop-start, mainly motorway miles, a bit of everything]
- Anything else relevant: [e.g. I carry a roof box all year round, I often sit in the car with the engine idling at school pickup, my tyres might need checking]

Please help me by doing the following:

1. Estimate what I'm currently spending on fuel each month based on my car's typical fuel economy and current UK pump prices. Show your working so I can see how the numbers add up.
2. Identify any driving habits, routines, or vehicle issues that might be costing me extra fuel without me realising.
3. Suggest at least five practical, specific things I could do to reduce my fuel spend — ranked by how much they're likely to save. Include both quick wins and longer-term changes.
4. Help me think about whether it's worth changing where I fill up — are supermarket forecourts or loyalty schemes likely to save me a meaningful amount?
5. Give me an honest comparison of what I'd spend if I switched to a more fuel-efficient car, a hybrid, or an electric vehicle — and whether that actually makes financial sense for my driving pattern.
6. If I batch my regular journeys more efficiently, roughly how much could I save per month?

Keep everything in plain British English and use pounds (£) for all figures. Be practical and honest — like a knowledgeable friend who's good with cars and wants to help me keep more money in my pocket.