What Car?'s favourite version of the Mazda 3 will have a new engine from January. The revised 1.6-litre turbodiesel unit is both more powerful and more economical than the engine it replaces.
With 113bhp – up from the current 1.6-litre unit's 107bhp – the engine meets Euro V emissions regulations and comes with a six-speed manual transmission.
Its average economy of 64.2mpg and CO2 emissions of 117g/km represent improvements of 1.4mpg and 2g/km compared with the previous model. The new figures don't change the car's company car tax liability, because it remains in the lowest tax band for diesel-engined cars (13%) and incurs zero road tax for the first year after registration.
There's no change in price, with 1.6D-engined cars costing from £16,505 in TS trim. The TS2-trimmed car is expected to be the biggest seller and costs £17,705. As a result, monthly company car tax bills for a basic-rate taxpayer will be £36 on the TS model and £38 on TS2 cars.
The new models will be available from January.
Get interactive with whatcar.com... 



Our reviews are based on hard data and thorough testing in the real world.
Up to the minute news from around the globe
Get a car insurance quote from over 100 companies with What Car? Compare in less than five minutes
What Car?
is brought to you by
Haymarket Consumer Media