Porsche Panamera Diesel, Never in the US
With a 3.0 Liter 250HP Turbo Diesel engine the Panamera is capable of 150mph while getting 43 mpg… well probably not at the same time.
Having an economy minded drive gets 700 miles from a single tank of gas, the diesel engine version of the Panamera is currently only available in Europe where diesel fuel costs roughly 1.5 Euros/liter or $7.50/gallon of diesel fuel. Yeah, can you imagine paying $7.50 per gallon of diesel fuel in the US???? It’s not too far away with diesel fuels at $5/gallon right now.