Hyundai Ioniq Hybrid vs Toyota Prius Hybrid: fuel economy and CO2 emissions
Both on paper and in our tests, the Hyundai Ioniq lagged behind the Toyota Prius in the fuel-economy department. Hyundai claims an official average figure of 61.4mpg, while our test figure came in at 51.3mpg over a mix of driving.
In contrast, the Prius’ on-test 63.3mpg is significantly better – and closer to its claimed 60.1-61.4mpg figures.
Over the course of a year and 12,000 miles, the Prius will cost £1,102 to fuel, with fill-ups costing around £55. The Ioniq will cost £1,360 over the same period with £58 fill-ups – and we think a saving of well over £200 a year is significant enough to affect a buying decision, especially in this segment.
However, it’s worth remembering that the Ioniq is much cheaper to buy than the Prius, at least in this pairing – although we’d recommend the front-wheel-drive Prius, which will still prove cheaper to fuel than the Ioniq.