# Ford Mustang — Used Car Buying Guide

AutoScout's analysis of the Ford Mustang on the UK used-car market. Backed by 33 million DVSA MOT tests, current AutoTrader pricing, and depreciation curves derived from CAP/Glass's Guide data.

Live interactive report: https://autoscout.fyi/cars/ford-mustang

## Verdict

- **Best value year**: 2021
- **Ideal trim**: 5.0 GT Fastback
- **Target mileage**: 35,000–45,000 miles
- **Max previous owners**: 2
- **Target price**: £37,998

## Why this model

The Ford Mustang is a fantastic choice if you're looking for an iconic American muscle car experience in the UK. The 5.0 GT Fastback offers incredible V8 sound, strong performance, and head-turning looks for a price that's hard to beat among its rivals. It's a proper driver's car that delivers a raw, engaging experience.

## What you should pay

Based on February 2026 UK market data, a 3-4 year old 2021 Ford Mustang 5.0 GT Fastback with around 30-50k miles typically sells for around £37,998. Prices can vary by ±15% depending on specific mileage, condition, and optional extras. Always aim to negotiate for the best deal, especially if the car has higher mileage or minor cosmetic imperfections.

## Which trim to buy

The 5.0 GT Fastback is definitely the one to go for. It's the quintessential Mustang experience with that glorious V8 engine, delivering all the power and sound you'd expect. While the EcoBoost is cheaper to run, it just doesn't have the same character or resale value. The Fastback also tends to hold its value slightly better than the Convertible, making it the best all-round package for performance and value.

## What to check before you buy

- Rear differential whine (especially on early S550 models, check if addressed)
- Infotainment system glitches (SYNC 3 can be buggy)
- Interior trim rattles (common on performance cars)
- Brake wear (heavy car, powerful engine, check discs/pads)
- Tyre wear (rear tyres especially)
- Potential for rust on underbody components if not regularly cleaned/protected, especially in UK climate

## Running costs

Running a 5.0L V8 Mustang isn't cheap, but it's part of the experience! Fuel costs will be significant, averaging around 29p per mile at current petrol prices (£1.50/litre and 23.5 mpg). This means around £2,900 for 10,000 miles. Vehicle Excise Duty (road tax) for a 2021 model will be £580 per year for the first five years (due to its original price over £40k), then £190 annually. Insurance will be high, typically ranging from £800 to £1,500+ per year depending on your age, location, and no-claims bonus. Servicing costs are moderate for a performance car, but expect higher costs for consumables like tyres and brakes.

## Key stats

- **Fuel Type**: Petrol
- **Horsepower**: 444 hp
- **Mpg**: 23-24 mpg
- **Reliability Score**: Good, but not class-leading. Expect typical sports car maintenance.
- **Safety Rating**: 5 stars (Euro NCAP 2018 with optional safety pack, which became standard on later models like 2021)

## Trim comparison

| Trim | Price new | Price used | Key features |
| --- | --- | --- | --- |
| 5.0 GT Fastback | £45,000 | £34,000 | 5.0L V8 engine; 6-speed manual or 10-speed auto; Brembo brakes |
| 5.0 GT Convertible | £48,000 | £36,500 | 5.0L V8 engine; 6-speed manual or 10-speed auto; Brembo brakes |
| 2.3 EcoBoost Fastback | £38,000 | £25,500 | 2.3L turbocharged 4-cylinder engine (290hp); 6-speed manual or 10-speed auto; Smaller brakes |

## Depreciation forecast

| Year | Estimated value | Retention |
| --- | --- | --- |
| 2026 | £37,998 | 100% |
| 2027 | £35,718 | 94% |
| 2028 | £33,575 | 88% |
| 2029 | £31,560 | 83% |
| 2030 | £29,666 | 78% |

The Mustang V8 tends to hold its value relatively well for a performance car, especially compared to some European rivals. The steepest depreciation has already occurred in its first few years. Buying a 3-5 year old model means you're past the initial big drop. Its value tends to flatten out after around 5-7 years, making it a good long-term hold if you plan to keep it for a while.

Total value lost since new: 21.8%.

## Alternatives to consider

- BMW M2 Competition
- Mercedes-AMG C43 Coupe
- Jaguar F-Type V6

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Source: AutoScout (https://autoscout.fyi). Part of a review of the UK used-car market across 500+ models.