Kia Rio Diesel 1.1CRDI and 1.4CRDI ?

Hello together, so my old BMW is getting more and more problems so that I think about a new vehicle. It should above all be economical, inexpensive in maintenance as well as very reliable. Who has experience with the current Kia Rio as diesel ?? 1,1CRDI or 1,4CRDI ? What consume these engines in the Rio, there are weaknesses, how does it look with running culture and heat performance in cold weather of these quite small engines ? Would be grateful about Info ́s !! Greetings TECMIKE