1. I think the City has a conventional CVT transmission not a DCT.
2. The Vezel does have the heating issue as well and if you search the forums you will see several references to it. I don't know about the GP5
3. When the masses in SL buy vehicles, things like reliability, performance, etc...are low down the list of priorities. It starts off with fuel consumption, followed on by availability of cheap parts and ability to run cheap, how impressed the neighbours would be, etc...Thus, even if they did know about reliability issues they would still purchase the vehicle with the hope that they will be able to sell it off at a profit before the problems prop up. So yeah...in SL people will be buying the car even if it doesn't suit the local conditions.
4. The DCT issue is not a "PROBLEM", but in fact the type of gear box not suiting Sri Lankan driving conditions. In Japan the i-DCD does not have similar problems (any more). The City, HR-V (Vezel's export model) and Fit all have standard CVT gearboxes (also they are all gasoline variants). But that is fine...our Sri Lankan baases, car salesmen and doctor/engineer/lawyer permit holders know a lot more than the engineers and techs at the car manufacturers. So we are in good hands