I dont think the news about D4D corollas can be true. long ago, may be 10 years ago, when the new shape of toyota hiace was introduced, indus guys launched it with D4D technology with turbochargers, pretty soon, the cars that were sold started coming back to indus due to issues with injectors and other things too. turned out that our diesel is not unleaded and that messed up the engines. very soon, indus launche an N/A version of the Hiace and since that day, things have been fine.
Since we still get the same kind of pathetic diesel, and other fuels too, i dont think indus will do the same mistake twice. although i'd love to see a 1.4l turbo diesel corolla...