Looking for the ultimate diesel tourer? Looking for both tons of torque and seemingly endless range? Well, look no further than the Alpina D4 Biturbo, the one car that offers luxury, comfort and torque beyond your wildest dreams. The people over in Buchloe launched the revised D4 Biturbo a while back and they keep on taunting us with their awesome promo clips, making us wonder how the D4 feels like from behind the wheel.

Their latest clip showcases both the Coupe and Convertible models out on a tour of the Alps, strutting their beautiful curves in front of the camera. Dressed in typical Alpina fashion, wearing the trademark stripes on the sides and the turbine wheels, it’s hard to resist the two, especially when you take their specs into account. And since these are the facelift models we’re looking at here, the specs are based on the new B57 engines as well.

Powered by a 3-liter straight six diesel engine, both cars have 350 hp and 700 Nm (516 lb-ft) of torque at their disposal. The new BMW ALPINA D4 Biturbo Coupe accelerates from 0 to 100 km/h (62 mph) in just 4.6 seconds on the way to a top speed of 278 km/h (172 mph). The Convertible does the same sprint in 5 seconds flat while the top speed is rated at just 275 km/h (170 mph). At the moment both cars are available solely with rear wheel drive but all-wheel drive versions should come out in the near future.

Effective optimization of pressure losses and special intake air ducts exploit the full engine potential and lead to significant gains in power output and enhanced engine characteristics. By also utilizing the achievable boost and injection pressure the maximum amount of torque is achieved between 1500 and 3000 rpm which is pretty close to idle. The throughput of the cooling system has a major influence on the performance of turbocharged engines. Full power delivery even under the highest thermodynamic loads is ensured by the high-performance cooling package, which comprises a large-volume intercooler with optimized intake and outlet ports as well as two radiators located in front of the wheel arches for optimum effectiveness.