Yes, diesel cars are indeed very refined these days. In fact, they are sturdier, stronger & have better longevity. Engine performance & pick-up too are very good - virtually as good as petrol ones. Besides they are economical (cost of diesel vis-a-vis petrol) & more fuel efficient (better mileage than petrol).
CNG is even more economical (cost of CNG vis-a-vis diesel) & fuel efficient (better mileage than petrol - but not better than diesel). For instance, if a car gives a mileage of 12 on petrol, it would give 14 on CNG - while diesel cars under reference give in the range of 16 to 18.
In any case, CNG retrofittment generally reduces engine performance/pick-up by 20-25%. This, however, varies/differs from car to car & depending upon the CNG Kit, Retrofittment quality (workmanship) & maintenace.
All in all, I too would suggest you to go for a diesel car (not petrol/CNG). |