Is it better to buy cheap or spend more on a used car?

Spending slightly more on a better-maintained car is usually better value. A £4,000 well-maintained car is almost always cheaper to own than a £2,000 car with unknown history. Cheap cars often have deferred maintenance costs — budget for hidden repairs when buying cheap.

What is the true cost of owning a used car in the UK?

For a mid-range used car (£5,000–£8,000), expect: insurance £500–£1,500/year, road tax £180/year, fuel £1,500–£2,500/year, servicing £200–£400/year, MOT £55/year, and tyres £200–£400 every 3 years. Total annual running cost: £2,500–£5,000 depending on mileage.

Should I buy a used car with finance?

Used car finance (PCP or HP) is available but carries risks. Interest rates on used cars are higher than new cars (8–15% APR is common). Calculate the total cost of credit before agreeing — a £6,000 car financed over 4 years at 12% APR costs over £8,000 total. Buying outright or saving first is cheaper.

How Much Should You Spend on a Used Car?

Q: How much should you spend on a used car?

A good rule of thumb is to spend no more than 15–20% of your annual take-home pay on a car purchase. Budget for total cost of ownership, not just purchase price: add insurance, road tax, servicing, fuel, and MOT costs. A £5,000 car can easily cost £3,000–£4,000 per year to run.

The True Cost of Ownership

The purchase price is only part of what you actually pay. For a typical £10,000 used car driven 12,000 miles per year, the annual running costs are:

Insurance (typical)£600–£1,200

Road tax (standard petrol/diesel)£195

Servicing (annual)£200–£500

Fuel (12,000 miles at 35 mpg)£1,500–£2,000

Repairs (1% of purchase price)£100

Total annual cost£2,600–£4,400

For a £10,000 car, you are spending £2,600–£4,400 per year in running costs. That is 26–44% of the purchase price annually. Over a 5-year ownership, a £10,000 car costs approximately £13,000–£22,000 total.

The 10% Rule

A useful rough guide: if the monthly running costs exceed 10% of the purchase price, you are stretching your budget. For a £10,000 car, that is £1,000/month in running costs — unrealistic but useful as a ceiling.

A realistic budget: aim for monthly running costs of 3–5% of purchase price. For a £10,000 car, that is £300–£500/month — more realistic and sustainable.

How Mileage Affects Budget

If you drive 20,000 miles/year instead of 12,000, fuel costs increase by 67%, and maintenance increases proportionally. A fuel-efficient car (40+ mpg) saves hundreds annually. A high-mileage car (100,000+) needs more frequent repairs — budget 2% of purchase price instead of 1%.

Calculate Your Affordable Budget

Decide your annual mileage
Estimate monthly running costs: insurance (monthly) + tax ÷ 12 + service ÷ 12 + fuel
Decide your comfortable monthly budget for the car
Subtract monthly running costs from your total budget
The remainder is what you can afford to spend on purchase price (including finance)

Example: You can spend £400/month total. Running costs average £250/month. You have £150/month for purchase price. Over 5 years with no interest, that is £9,000. Over 5 years with 7% interest, it is closer to £7,500.

Car Age and Repair Risk

Older cars have higher repair costs. Budget accordingly:

Cars under 5 years: 1% of purchase price annually for repairs
Cars 5–10 years: 1.5–2% of purchase price annually
Cars over 10 years: 2–3% of purchase price annually

A £15,000 car that is 8 years old might need £225–£300 of repairs in a year. Budget for this. If you cannot afford it, buy a newer car at lower risk, or save more cash as an emergency buffer.

A vehicle history check is one of the best-value items in your car-buying budget. For around £15, a VEHIXA report reveals finance, write-offs, and stolen markers — protecting thousands of pounds of investment.

How Much Should You Spend on a Used Car? Budget Planning Guide

The True Cost of Ownership

The 10% Rule

How Mileage Affects Budget

Calculate Your Affordable Budget

Car Age and Repair Risk