India rejected it because, when the diesel engine gave issues, they became repeated in nature. Atleast the few 1.9Ds that I saw closely and still see even today in a garage I regularly visit. Very often we forget that performance reliability is lost in some vehicles as soon as they are opened up for some major engine related issues. Costly fuel pump, oil pump or sensors and what not. At some point the car keeps visiting garage too often, bills keep piling up, spares are not available easily etc. etc. Someone has a blog on the 1.9D which you should see, the no. of comments for similar issues related to error messages and desi workarounds and issues unresolved. The Siena had no different reputation atleast in Mumbai. So yes lack of knowledge of customers and low support from Fiat and spare resellers and low trained mechanics all contributed to the rejection of Palio 1.9s or Petra 1.9D or even the Siena 1.7D which is simpler and easier to maintain but underpowered for city commutes, but all far from being niggle free. Agree with your conclusion that Punto and Linea are better balanced on power and economy and even reliability to a great extent.