Engine choice

Nissan offered the K12 Micra with a diesel engine, but for the new model they decided that frugal petrol motors would do the job. Just two were on offer, both of which were new HR12 1.2-litre three-cylinder units featuring twin chain-driven camshafts and variable valve timing. The entry-level model managed 79bhp and although performance was modest – reaching 62mph took a lethargic 13.7 seconds – it claimed a combined 56.5mpg and 115g/km CO2 emissions. Opt for the automatic transmission (CVT) and those figures became 52.3mpg and 125g/m, but it was an otherwise impressive showing and the alternative engine offering was even better. The supercharged 1.2 DIG-S (Direct Injection Gasoline – Supercharged) not only featured additional tech, including stop-start and an intelligent alternator, but operated on the more efficient Miller Cycle at low revs, before switching to the conventional Otto Cycle at higher engine speeds. The result was combined economy of 68.9mpg in manual form and CO2 emissions of just 95g/km (115g/km for the CVT). With 98bhp to play with, performance was markedly improved, with the 0-62mph time cut to 11.3 seconds with a 112mph top speed.

Decently refined and with a pleasingly thrummy note when extended, both engines suit the Micra’s city car brief, and their fuel-sipping nature is a further plus for those after cheap running costs. The three-year/60,000-mile warranty would have added peace of mind, too.