It's the obvious next step to complete the 159 range. As with the 156 before it, the 159 has now spawned a Sportwagon estate-car version. Except that, as before, it's not a true estate car: the rear loading sill, for all its shiny aluminium garnish, is much higher than the boot floor, and the rear seats fold not so much flat as into a gentle hill with a ramp at the base...