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Can I Change My Car Wheels From 16 Inch to 18 or 20 Inch?

     A Complete Guide to Legality, Safety, Tyres, Fitment and Getting It Right Changing the wheels on a car is one of the most popular modifications people make. A larger set of alloy wheels can completely transform the appearance of a vehicle. A car that looks ordinary on standard 16-inch wheels can look much more aggressive and sporty with 18, 19 or even 20-inch alloys. But what happens if your car currently has 16-inch wheels and you want to fit 18 or 20-inch wheels? Follow Car Guru DIY Blog Is it legal? Will the car still pass its MOT? Will the larger wheels damage the suspension? Will the tyres rub against the arches? Will your speedometer become inaccurate? And perhaps most importantly:  how do you make sure the modification is actually safe? The short answer is that increasing wheel diameter from 16 inches to 20 inches can be possible, but you cannot assume that any 20-inch wheel will fit simply because the bolt pattern looks correct. The wheel, tyre, suspensi...

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How much does it cost to own a car in the UK per year?

How much does it cost to own a car in the UK per year?

A detailed, realistic comparison from a small city car to a luxury SUV (with real calculations)

Owning a car in the UK is often described as “expensive” but that word hides a complex reality. The true cost isn’t just what you pay upfront or even monthly. It’s a layered mix of fuel, insurance, tax, depreciation, servicing, and sometimes finance, all quietly adding up over time.

How much does it cost to own a car in the UK

Recent data shows that:

  • A basic car can cost £3,000–£4,000 per year (excluding finance)
  • Typical real-world ownership ranges from ~£4,000 to £11,000 annually depending on car type
  • With finance, many drivers actually spend £7,000–£10,000+ per year

Let’s break it down properly with real calculations and compare three categories:

  • Small city car (e.g. Ford Fiesta class)
  • Mid-size SUV (e.g. Nissan Qashqai class)
  • Premium luxury SUV (e.g. Range Rover class)

The Core Cost Formula

At its simplest, total cost of ownership per year:

Total Cost = Fuel + Insurance + Tax + Maintenance + Depreciation + (Finance if applicable)

Typical UK averages per category (baseline):

  • Fuel: £1,000–£2,200/year
  • Insurance: £600–£1,200+
  • Maintenance: £300–£1,000+
  • Depreciation: £1,500–£4,000+

Scenario Assumptions (for fair comparison)

We’ll use realistic UK conditions:

  • Mileage: 8,000 miles/year
  • Fuel price: £1.50/litre
  • Ownership: mix of used/new vehicles
  • Driver: average adult (not young high-risk)

1. Small City Car (Budget ownership)

Example: Ford Fiesta / Toyota Aygo class

Step-by-step calculation:

Fuel

  • 55 mpg ≈ 14.1 miles per litre
  • Fuel used = 8,000 ÷ 14.1 ≈ 567 litres
  • Cost = 567 × £1.50 ≈ £850/year

Insurance

  • Typical: £500–£800 → assume £650

Tax (VED)

  • Small petrol: ~£180/year

Maintenance

  • Servicing + tyres + repairs: ~£400/year

Depreciation

  • Used car loses ~£1,000/year

 Total (Small Car)

£850 + £650 + £180 + £400 + £1,000 = ~£3,080/year

Matches real UK estimates (~£3,500–£4,500 range)


2. Mid-Size SUV (Family car)

Example: Nissan Qashqai / Kia Sportage

Step-by-step calculation:

Fuel

  • 40 mpg ≈ 11.3 miles per litre
  • Fuel used = 8,000 ÷ 11.3 ≈ 708 litres
  • Cost = 708 × £1.50 ≈ £1,060/year

Insurance

  • Higher risk/value: £800–£1,200 → assume £950

Tax

  • Typical SUV: £200/year

Maintenance

  • Larger tyres, parts: £700/year

Depreciation

  • ~£2,000/year

Total (Mid SUV)

£1,060 + £950 + £200 + £700 + £2,000 = ~£4,910/year

Very close to real averages (£4,500–£6,000)


3. Premium Luxury SUV (High-end ownership)

Example: Range Rover / BMW X5

Step-by-step calculation:

Fuel

  • 28 mpg ≈ 9.9 miles per litre
  • Fuel used = 8,000 ÷ 9.9 ≈ 808 litres
  • Cost = 808 × £1.50 ≈ £1,210/year

Insurance

  • High value vehicle: £1,200–£2,000 → assume £1,500

Tax

  • Standard £200 + luxury tax £390
    £590/year

Maintenance

  • Premium servicing, tyres, repairs: £1,200/year

Depreciation

  • Often £3,000–£6,000/year → assume £4,000

Total (Luxury SUV)

£1,210 + £1,500 + £590 + £1,200 + £4,000 = ~£8,500/year

Aligns with real-world figures (£6,000–£10,000+)


Comparison Table

CategoryFuelInsuranceTaxMaintenanceDepreciationTotal
Small city car£850£650£180£400£1,000£3,080
Mid-size SUV£1,060£950£200£700£2,000£4,910
Luxury SUV£1,210£1,500£590£1,200£4,000£8,500

Key Insights (What really drives the cost)

1. Depreciation is the biggest hidden cost

Most cars lose 40–60% value in 3 years
→ This alone can exceed fuel + insurance combined.

2. Bigger cars don’t just use more fuel

They also cost more in:

  • Insurance
  • Repairs
  • Tyres
  • Tax

3. Finance can double your cost

Add £400/month finance → +£4,800/year


Real-World Reality Check

Average UK drivers:

  • Spend ~£3,400/year for a modest car
  • Or £6,000–£7,000 including depreciation/finance

That means:
A luxury SUV can cost nearly 3× more per year than a small city car.


Final Thoughts

Owning a car in the UK isn’t just about affordability it’s about long-term financial impact.

  • A small car = cheap, predictable, efficient
  • A mid SUV = balanced but noticeably more expensive
  • A luxury SUV = a lifestyle choice with serious financial weight

The real difference isn’t just fuel it’s the compounding effect of depreciation, insurance, and maintenance.

Understanding that is what separates a “cheap monthly payment” from a truly affordable car.

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