More and more buyers are downsizing from thirsty saloon cars to thrifty superminis in order to save money.
But they're no normal superminis, though – they're some of the most eco-friendly superminis around.
With seating for five, enough boot space for the weekly shop, the promises of high fuel economy and zero road tax, it's easy to see why green superminis are flying out of the showrooms.
AOL Cars has brought together five of the best in terms of producing the lowest CO2. How much nasty CO2 a car emits affects how much road tax you pay.
Under 100g/km? It's free road tax – but with this threshold set to be pushed lower in the not too distant future, our top five concentrates on the superminis with the lowest CO2 figures.
It's by no means a complete list – the UK market is packed full of eco superminis – but these are our favourites.
- Toyota Yaris Hybrid
The Yaris Hybrid is the most economical supermini on sale today – if you believe the claimed EU MPG figures – as well as the cheapest way into a hybrid. The 1.5-litre petrol-electric mix allows you reach a claimed 80.7mpg while only emitting 79g/km of CO2 and you get a decent amount of kit too, despite the usually expensive hybrid system. Prices start at around £15k. </p>
- Hyundai i20 1.1 CRDi
The more conventional Hyundai i20 comes close to the Yaris Hybrid on CO2, at 84g/km, but completely flaws it on economy. The tiny 1.1-litre three-cylinder diesel engine is claimed to achieve up to 88.3mpg, the best economy figure in our top five, on par with the Kia Rio. The i20 pips it – just - on both emissions and price, at £11,795.</p>
- Kia Rio 1.1 CRDi
The Kia Rio missed out on second place by just 1g/km of CO2. The Rio emits 85g/km but returns an equally impressive 88.3mpg from the same 1.1-litre diesel engine as the i20. At £11,895, it’s also £100 more than the i20 as well.</p>
- Peugeot 208 1.4 e-HDi Stop and Start EGC
Peugeot’s new 208 uses a 1.4-litre diesel unit to achieve 83.1mpg, 2.4mpg more than the Yaris Hybrid, while producing just 87g/km. The 208’s freshs styling is the best of the bunch here, but we're after the lowest CO2 and it's doesn't come out top here.</p>
- Ford Fiesta ECOnetic 1.6 TDCI
Despite having the biggest engine in our top five, the Ford Fiesta ECOnetic 1.6 TDCi still emits just 87g/km. Although 78.5mpg is still a respectable economy figure, it’s the only supermini in our top-5 that fails to achieve over 80mpg and at £14,445, it’s also the second most expensive car here. </p>