Used Car Buyer’s Guide: Best Family Cars Under £20k

Buying a car is a major financial decision for any household, and it's unsurprising that used car sales are on the up as many families look to get better value for their money.  

Choosing used often means you can afford a higher-spec model, more space, or better technology without stretching your budget too far.  

We've picked out some of the best family-friendly used cars you can find for under £20,000 – cars that have the practicality you need to cart around the kids, as well as offering comfort and bang for your buck. 

Ford Puma 

The UK’s best-selling car had to top this list. Its mild-hybrid EcoBoost engines help boost fuel efficiency, making it cheaper to run and kinder to your wallet. The Puma is also widely available across the used market, and thanks to Ford’s large dealer network, servicing and maintenance are straightforward and affordable. 

If you're looking for style, the sporty ST-Line X models are frequently available for under £20k, often only a couple of years old. Families wanting a more premium feel should keep an eye out for the plush Vignale trim; go slightly older and you can sometimes secure this luxury-leaning version well within budget. 

Vauxhall Mokka 

Another UK favourite, the Vauxhall Mokka offers excellent choice and value. Whether you prefer a petrol engine or want to take your first step into electric motoring, there’s an abundance of used Mokkas under £20k. Many come in the eye-catching GS trim, which adds sporty styling and plenty of equipment. 

The Mokka is a great all-rounder for younger families. There’s solid boot space, good in-cabin storage, and enough size to comfortably manage both school-run duty and weekend trips, without feeling bulky in town. 

Peugeot 3008 

If space is high on your priority list, the Peugeot 3008 is a standout choice. Loved for its striking design and comfortable interior, the 3008 delivers a lot of car for your money. Under £20k, you’ll find petrol, diesel, and even plug-in hybrid options, with many models only a couple of years old. 

As one of the larger SUVs in this price bracket, the 3008 offers excellent practicality. Its 591-litre boot provides ample room for buggies, sports kit, or a family’s worth of luggage, whilst the cabin feels both modern and spacious. 

Hyundai TUCSON 

The Hyundai TUCSON is a popular choice among families looking for a reliable and spacious car. It’s stylish and roomy, ideal for growing households who need comfort as well as functionality. 

One of the biggest advantages of choosing a used TUCSON is Hyundai’s five-year warranty, one of the most generous on the market. Many used models will still be covered, giving families extra peace of mind and helping protect against unexpected repair costs. 

Volkswagen Golf 

The Volkswagen Golf is a long-standing family favourite. Whilst it’s one of the smaller models on this list, it remains perfectly suitable for family life - especially for those who regularly navigate city streets or prefer a more compact, easy-to-park vehicle. 

Under £20k, it’s common to find low-mileage examples in the well-equipped Life trim. If you’re open to choosing a slightly older model, the sought-after sporty R-Line also becomes accessible within this budget.