If you want even more zip, this is a more powerful 115bhp version of the 1.0-litre turbocharged engine. It feels sharper in its throttle response, and pulls better from low revs, offering easier motorway performance. It also bring a firmer, lower suspension set up and sharper steering. However, the differences are only slight, plus it’s more expensive to buy and run, so we’d stick with the 99bhp unit.