Suzuki dropped its diesel engine for the Swift due to this new 99g/km CO2 1.2-litre Dualjet, which essentially made the oil-burner redundant. It went on sale at the start of this month at a £500 premium over the standard 1.2-litre engine.

Why is it interesting?

The new engine tech uses twin fuel injectors to boost fuel economy from 56.5mpg to 65.7mpg, and that low CO2 figure means the Swift is VED exempt. There’s a slight drop in power from 94hp to 90hp as a result of the more efficient engine.

How are the running costs?

Unfortunately, full running costs were not available to compare as BusinessCar went to press, but the 99g/km brings the Swift in line with the five-door Ford Fiesta 1.0-litre Ecoboost in terms of emissions and taxation. However, the Swift is £10 more expensive that the Fiesta for BIK payments at £39 due to the higher P11D price.

Any other business?

While the new engine will help to open doors for corporate sales there are still some areas where the Swift is lacking in comparison with competitors. Interior build quality doesn’t stand up, particularly on touch points such as the gear lever and button surrounds on the dash.

The new petrol sounds quite raspy and it’s not as peppy as some of the new 1.0-litre cylinder units available on the market now from many mainstream competitors. As the new petrol is only available on the top SZ4 trims, it means the price point is right up against the Fiesta and Corsa, which makes it even more difficult for the Swift to shine