Fuel Economy of the 2004 Kia Sorento 4WD

If you can handle having a car that gets worst mileage than a ford mustang v8, chevy suburban or a 911. Then you can get one (14mpg is actually 5.9 km/l but their odea of city driving is different from ours, it will surely be worse than that)
I actually have a diesel 2005 sorento, its quite reliable. Parts are easy to get if you know where to look. I woudnt recommend a diesel if you do only 4km a day(the engine will never reach the temperature).

the main reason you ahoudnt get the sorento is the resale value. When it comes time to sell, nobody is interested in a gas guzzling sorento, but someone will still buy your jazz