The most important thing to know about buying your first car in the UK is that the sticker price is almost irrelevant. What actually matters is what it costs to run — and for a new driver, insurance is the biggest variable by far.
A car that costs £3,500 in insurance group 20 will cost you more in year one than a car that costs £5,000 in group 3. So this list isn't just about the cheapest cars to buy — it's about the cheapest cars to own.
Every pick below has been chosen based on: insurance group (sourced from ABI/Thatcham), typical used car prices in 2025, reliability records, and how well they hold up to the kind of driving most new drivers do.
The Toyota Aygo sits in insurance group 1 — the absolute cheapest tier. For a 19-year-old with no NCB in a suburban area, that typically means a premium around £900–£1,100. Nothing else at this price point comes close.
It's a city car: small, easy to park, surprisingly fun to drive. The interior is basic but the mechanicals are famously bulletproof. Toyota's reliability record is exceptional, and parts are cheap. The only real drawback is motorway driving feels a bit buzzy above 60mph — it's not built for long runs.
The 2014–2021 third-generation model is the sweet spot. Pre-2014 models start showing their age. Budget £3,500–£5,500 for a good one with full service history.
The Picanto's ace card is Kia's 7-year manufacturer warranty — unusual for any car, remarkable for a used car in the first-time buyer bracket. If you can find a 2018–2019 example still within warranty, you have genuine peace of mind about major mechanical failures.
Insurance group 2 means a premium typically £80–£150 higher than the Aygo for the same driver profile — still very reasonable. The 2017 facelift brought much-improved interior quality and a more modern infotainment system.
The 1.0-litre engine is fine for town but slightly underpowered on dual carriageways with a full car. If you plan to do regular motorway miles, consider the 1.25-litre version, though insurance will edge up to group 4.
The i10 is arguably the most practical city car in this bracket. Slightly more interior space than the Aygo or Picanto, better rear seat room, and a genuinely pleasant cabin by small-car standards. The second-generation (2014–2019) and third-generation (2020–present) are both excellent.
Insurance group varies between 2 and 4 depending on the engine and trim level. The 1.0-litre 67bhp version sits in group 2. The 1.2-litre sits in group 4 but adds noticeably more pace.
Hyundai has 5-year warranty coverage, and the i10 has a strong reliability record. Common used car faults are minor — occasionally a squeaky brake or a slightly stiff gearbox on high-mileage examples. Nothing expensive.
The Polo is the step up — slightly bigger, more refined, and with a premium feel that city cars can't match. The 1.0-litre MPI (naturally aspirated) version sits in group 3–4 and is the one to go for. Avoid the 1.2 TSI turbocharged version if you're cost-conscious — it's in a higher group and has a well-documented timing chain issue on early units.
The Mk5 Polo (2009–2017) represents the best value right now. Well-maintained examples with service history are widely available at £3,500–£6,000. The badge still carries weight — resale value is strong.
Check: cambelt/chain service history, any rust around the rear arches, and that the touchscreen (on later models) works properly.
The Fiesta was the UK's best-selling car for 16 consecutive years. It stopped being made in 2022, which means good used examples are more available than ever — and prices are settling to sensible levels.
The 1.0 EcoBoost (100bhp) is the standout engine — punchy, economical (up to 50mpg real-world), and in group 8. The older 1.25 petrol is in group 3 but feels dated by comparison. Both are easy to insure relative to similar-sized competitors.
Be aware: the 1.0 EcoBoost has a known coolant leak issue on 2012–2015 examples. Have a trusted mechanic look specifically at the coolant system before buying.
A few cars that often come up but deserve more caution:
Before you book a viewing on any used car, look up its insurance group. You can do this free on the Parkers website or on any listing on StarterMotors — we show the group on every car.
As a rough guide for a 19-year-old with no NCB in a suburban area:
Those are ballpark estimates. Use our free cost calculator to get a figure based on your specific age, location, and the car's group.
Every listing on StarterMotors shows the insurance group and estimated annual premium. No surprises.
Browse the marketplace →Whatever car you choose from this list, do these three things before handing over money: