Kangoo Mk.1 Diesel: which engine?

Hi guys. I’d like to buy a Kangoo first generation, and it’s supposed to be a diesel. Now the question is, which engine should I take? As far as I know, it comes with the following engines: 1) 1.5 common rail 2) 1.9 direct injection 3) 1.9 suction diesel from Citroen there’s the Berlingo with 1) 1.6 direct injection 2) 2.0 direct injection Now I’d like to know: Which engine is the most durable, and which engine consumes less? I drive mainly in the city and a little bit more berland, highway rather rarely. And I drive rather comfortably, at lower speeds. But that’s why I would like it if the engine also pulls well in the lower speed range. Are there turbodiesel engines, which pull only from 2500rpm, and which ones that go off earlier. Which would you recommend? Actually, I mean not only the Kangoo models, but also Berlingo. Is the same after all. Thanks already in advance.