Jaguar XF Sportbrake
Easily the most slept on luxury car of all time. While Mercedes pumps out E-class sedans, wagons, coupes and convertibles by the second, Jaguar's big wagon was left to languish. While no one bought them, probably due to how terrible the pre-facelift XF interiors were, they represented a uniquely British estate car with drop-dead gorgeous styling and decent performance. Rest in peace XF Sportbrake.
I was furious when the Jaguar XF Sportbrake was discontinued.