Mazda3 1.6 diesel or Hyundai i30?

Hi Colette,

We'll work from official figures here. Mazda quotes 4.3 litres/100km (65.7mpg) for the Mazda3 fitted with its 115hp 1.6 diesel engine. That applies to all versions of the five-door hatchback and four-door saloon the diesel engine can be had in.

Hyundai, meanwhile, quotes 4.1 litres/100km (68.9mpg) for its 110hp 1.6-litre diesel engine - in manual guise - so that car wins by a nose.

We wouldn't expect there to be much in it for the average driver though, as the Mazda has a little more performance (specifically torque), which means that the driver has to try a little harder in the Hyundai to achieve the same speeds.