High-powered D5 Bi-Turbo diesel is based on the BMW 5-Series and comes with an output of 350 PS (257 kW / 345 hp).

German tuner manufacturer Alpina has unveiled the D5 Bi-Turbo based on the BMW 5-Series.

The BMW Alpina D5 Bi-Turbo features a 3.0 liter twin-turbo straight-six diesel unit with a maximum output of 350 PS (257 kW / 345 hp).

What's remarkable is that, by means of Alpina's engineering prowess, the D5 Bi-Turbo sports the same fuel-economy rating (on the sedan/saloon), 6.2 liters/100 km, as does the BMW 530d, which only offers up 245 PS (180 kW / 241 hp).

Transmission is the ZF SWITCH-TRONIC eight-speed Sport Automatic gearbox which Alpina engineers have also revised.

All that provides for a 0 to 100 km/h sprint time of 5.2 seconds for the D5 Bi-Turbo and a top speed of 270km/h (168 mph).

Alpina's suspension includes its own springs which are shorter and provide for a taut yet forgiving ride.

Wheels are 20-inch Alpina Classic rims wrapped in Michelin Pilot Super Sport tires sized 255/35ZR20 at the front and 285/30ZR20 for the rear.

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