Due on sale from mid-November, the Executive and Premium Executive models team up Infiniti’s 2.2-litre four-cylinder diesel engine with either manual or automatic transmission, offering emissions of 114g/km for the manual along with combined fuel economy of 64.2mpg in the manual and 58.9mpg in the automatic. 0-62mph time for the 168bhp unit is 8.5 seconds.

Pricing starts from £29,870 with a contract hire leasing rate of £299.99 plus VAT per month (3+35 rentals, non maintenance, 10,000 miles a year). Higher specified versions, such as the Q50 Premium Executive with satellite navigation, heated and powered leather seats with memory and I-Key plus many other features, costs from £33,470 or with contract hire of £336.99 per month.

Infiniti also says the Q50’s 114g/km CO2 rating for the manual also delivers highly competitive BiK tax bills for drivers. A 20% taxpayer in 2013/14 will face a BiK tax bill of £83.45 a month (40% taxpayer: £166.90) for the manual. And in year three (2015/16) this rises to only £99.56 (£199.13).

Infiniti UK Fleet Manager Hannah Bishop said: ‘A car of this size, power and standard specification for under £300 a month (plus VAT) is a very attractive and competitive proposition for the business user. The new Executive versions offer everything a driver expects in a car and a great deal more besides, such as our InTouch technology with dual touch-screens for a ready-to-go digital mobile office.’

Q50 Executive for business drivers