# Mazda CX-3 — Used Car Buying Guide

AutoScout's analysis of the Mazda CX-3 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/mazda-cx-3

## Verdict

- **Best value year**: 2020
- **Ideal trim**: Sport Nav+
- **Target mileage**: 30,000–50,000 miles
- **Max previous owners**: 2
- **Target price**: £13,000

## Why this model

The Mazda CX-3 is a fantastic choice if you're looking for a stylish, reliable, and fun-to-drive small SUV. Mazda consistently ranks high for reliability, so you can expect fewer unexpected repair bills. It's also pretty economical for a petrol SUV, and its compact size makes it great for city driving while still offering that elevated driving position. It feels a bit more premium than some rivals without the premium price tag.

## What you should pay

Based on current UK market data for February 2026, a 3-4 year old Mazda CX-3 Sport Lux 2.0 SkyActiv (2021 model with 30-50k miles) typically sells for around £13,799. For a 2020 Sport Nav+ model, which is a great mid-to-high trim, you should aim for a price in the region of £12,500-£13,500. Prices can vary slightly based on exact mileage, condition, and optional extras, but this range represents a fair deal in today's market.

## Which trim to buy

The Sport Nav+ trim offers the best balance of features and value. You get a lot of desirable tech like a 7-inch colour touchscreen with sat-nav, DAB radio, Bluetooth, cruise control, automatic climate control, and rear parking sensors. It also comes with 18-inch alloy wheels and LED headlights, giving it a more premium look and feel without jumping to the top-tier GT Sport Nav+ which adds a bit more luxury but at a higher price point that might not be worth the extra cash for most buyers.

## What to check before you buy

- Minor infotainment glitches (e.g., Bluetooth connectivity issues)
- Some owners find the ride a bit firm on larger alloy wheels
- Standard wear and tear on brakes and tyres

## Running costs

Running costs for a 2020 Mazda CX-3 2.0 Petrol are quite reasonable. Fuel will be your biggest expense, costing around £0.15 per mile based on current petrol prices and its 45-48 mpg efficiency. Road tax (VED) for cars registered after April 2017 is £180 per year. Insurance costs are highly variable, but you can expect to pay roughly £400-£700 annually depending on your age, location, and driving history.

## Key stats

- **Fuel Type**: Petrol
- **Horsepower**: 121 PS (119 bhp)
- **Mpg**: 45-48 mpg (combined)
- **Reliability Score**: Excellent
- **Safety Rating**: 5 Stars (Euro NCAP 2015)

## Trim comparison

| Trim | Price new | Price used | Key features |
| --- | --- | --- | --- |
| SE-L Nav | £19,000 | £11,000 | 16-inch alloy wheels; 7-inch colour touchscreen with Mazda Connect infotainment; DAB radio, Bluetooth |
| Sport Nav+ | £22,000 | £13,000 | 18-inch alloy wheels; Integrated satellite navigation; Automatic climate control |
| GT Sport Nav+ | £24,500 | £14,750 | Leather upholstery; Bose surround-sound system; Head-up display |

## Depreciation forecast

| Year | Estimated value | Retention |
| --- | --- | --- |
| 2026 | £13,000 | 100% |
| 2027 | £11,700 | 90% |
| 2028 | £10,647 | 81% |
| 2029 | £9,796 | 75% |
| 2030 | £9,110 | 70% |

Buying a 3-5 year old Mazda CX-3 like the 2020 model means you've let the first owner take the biggest hit on depreciation. Mazda models tend to hold their value quite well compared to some rivals, especially given their reliability. You're getting a car that's still relatively modern but at a significantly reduced price, and its value should stabilise nicely over the next few years, meaning you won't lose a huge amount when you eventually sell it on.

Total value lost since new: 29.9%.

## Alternatives to consider

- [Nissan Juke](https://autoscout.fyi/cars/nissan-juke.md)
- [Renault Captur](https://autoscout.fyi/cars/renault-captur.md)
- [Honda HR-V](https://autoscout.fyi/cars/honda-hr-v.md)

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