Here’s a nice promotional video of what’s possibly the most desirable diesel-powered saloon in the world. It is also one of the most expensive cars in its class with a base price of 80,183 euro. For that money you get a Porsche Panamera to begin with, a 3.0-litre V6 engine with 250 hp (184 kW) and maximum torque of 550 Nm, an eight-speed Tiptronic S transmission, 0 to 62 mph in 6.8 seconds, and most importantly, average fuel consumption of 43 mpg or 6.5 liter per 100 km.