Pricing and specification details have been announced for the 2015 BMW X5 M and its coupe-styled sibling, the 2015 BMW X6 M.

The range-topping versions of the X5 and X6 will arrive in the second quarter of 2015, with the high-performance duo claimed to "set the benchmark" for dynamic ability and agility.

The X5 M (pictured below) will be priced from $185,900 plus on-road costs, positioning it just over the Mercedes-Benz ML63 AMG ($181,900), but well below the upcoming Range Rover Sport SVR ($218,500) and Porsche Cayenne Turbo (from $230,800).

BMW X5 X6 M 2

The X6 M (pictured below) attracts a premium over its more practical sibling, and is priced at $194,700 plus costs.

Both models are fitted with a 4.4-litre twin-turbo V8 engine producing 423kW and 750Nm - the most powerful engine BMW has ever offered with all-wheel drive - and both can sprint from 0-100km/h in just 4.2 seconds. An eight-speed sports automatic with paddleshifters and launch control function is standard.

The new engine offers 15kW more than its predecessor, and torque has risen by 70Nm. However, fuel use is down 20 per cent, with claimed consumption rated at 11.1 litres per 100 kilometres.

Read full details on the 2015 BMW X5 M and 2015 BMW X6 M.

BMW X5 X6 M 7

 

2015 BMW X5 M and 2015 BMW X6 M - standard equipment: 

21-inch alloy wheels

Lane departure warning

Forward collision warning with autonomous emergency braking

Pedestrian warning with light braking function

Parking Assistant with fully automated braking and acceleration

Surround view (360 degree) camera system

Adaptive LED headlights

Head up display

DAB digital radio tuner

Harman Kardon surround sound system with 16 speakers

Tyre Pressure Monitor

ConnectedDrive Freedom (including ConnectedDrive Services, Remote Services, Real Time Traffic Information, Concierge Services)

Dynamic Performance Control

Dynamic Damper Control adjustable dampers (with Comfort, Sport and Sport+ settings)

Dynamic Drive bodyroll mitigation

Heated, electric front seat adjustment and steering wheel adjustment with memory settings and comfort access

Merino leather trim

Electronic tailgate

Sunroof

BMW Individual leather instrument panel (X6 M only)

Metallic paint