The Mini One D hatch is the jewel in the brand’s CO2 crown, with the iconic car now available with 99g/km emissions and official figures of 74.3mpg.

The move is overdue for the brand with a competitive host of small cars falling into the sought-after sub-100g/km category including the Vauxhall Corsa, VW Polo and Ford Fiesta.

Introduced last year, it is, at 90hp, the less powerful sibling of the Cooper D, which is also sub-100g/km but offers 112hp, making it 1.7 seconds faster at 9.7 seconds. But Mini enthusiasts won’t be disappointed with this practical green version; it’s more nippy than you’d expect for a 90hp 1.6 diesel and has the fun factor the Mini is so well known for.

Costing £14,425 and with 13% benefit-in-kind tax, 20% taxpayers will pay £31 per month – not bad for a stylish small car that will appeal to savvy fleet managers too.

Mini One D hatch 1.6 90hp 3dr
P11D price £14,425
Model price range £11,810-£19,945
Fuel consumption 74.3mpg
CO2 (tax) 99g/km/(13%)
BIK 20/40% per month £31/£63
Service interval variable mls
Insurance group 13
Warranty 3yrs/unlimited mls
Boot space (min/max) 160/680 litres
Engine size/power 1598cc/90hp
Top speed/0-62mph 114mph/11.4secs
On sale September 2010
Score 8/10
Verdict Mini’s BusinessCar
Award-winning credentials
are enhanced