Yaris: yearly fuel cost
If fuel economy is your top priority, the 2024 Toyota Yaris is almost in a class of its own: its hybrid system claims around 68 mpg combined, which translates to roughly £776 a year for 8,000 miles at £1.45 per litre — about £65 a month, or £14.90 a week. That is miles ahead of the hatchback segment average of 53.9 mpg across our 20-car sample, and it makes the Yaris the cheapest car here to fuel by a clear margin. With around 116 hp and a 9.7-second 0–62 time, it is no slouch either. Five years of fuel costs roughly £3,880 — less than £4,000 to run a car for half a decade, a figure that embarrasses everything else on this list.
The Yaris is one of the few cars whose real-world economy regularly matches the brochure: owners commonly report 64–68 mpg in mixed driving, and town use can exceed the official figure because the hybrid system does its best work in stop-start traffic. To extract the maximum, brake gently to feed the regenerative system, pulse-and-glide on suburban roads rather than holding a constant throttle, and keep speeds moderate — the Yaris sips fuel in town but its advantage narrows at sustained 80 mph cruising. Verdict: simply the most fuel-efficient car in this comparison, and remarkably honest about it — the WLTP figure is genuinely achievable. Running the correct tyre pressures and keeping servicing up to date — fresh oil and clean filters — also protect the Yaris's stellar economy, ensuring the hybrid system performs exactly as intended for years.