Infiniti’s new flagship M37 saloon is now on sales in the UK priced from £35,150.

UK customers can only get Infinitis from its sole UK showroom in Reading, but the luxury-arm of Nissan is expecting its dealerships in Birmingham, Glasgow and central London to open before the end of this year.

The M37 is powered by Infiniti’s 3.7-litre petrol V6 which develops 316bhp.

A seven-speed automatic transmission, bi-Xenon lights, 10-way power front seats, reversing camera, hard disk drive (HDD) sound system and Infiniti’s new Drive Mode Selector which tailors key driving parameters to sport, normal, snow and eco settings all come as standard.

The M37 GT (from £37,650) adds semi-aniline leather, heated and ventilated front seats and white ash wood trim with silver powder finish. The M37S (from £39,650) includes four-wheel active steering (4WAS), sports suspension, sports seats (also heated and ventilated), gearshift paddles and 20-inch alloy wheels.

Premium versions of both the GT (from £43,000) and the S (from £45,000) come with every feature available, including the dynamic safety shield package, Forest Air conditioning system, a 16-speaker Bose sound system and Infiniti’s Connectiviti+ information and entertainment platform comprising 30GB HDD navigation.

Premium versions also feature Infiniti’s eco pedal. If driving too aggressively, the driver will feel the accelerator pedal “push back” to indicate fuel is being wasted.

The M37 accelerates from 0-62mph in 6.2 seconds and top speed is electronically limited to 155mph.

A diesel version M30d is due in October and an M35 hybrid in spring 2011.