No one can predict the fate of some thing for sure but Allaah Almighty.
I owned Wagon R VXL for 17 months before ultimately selling it off to buy a bigger car. My selling experience says, it surely doesn't enjoy good and fast resale. I had to put extra efforts before being able to sell it off. People used to come, inspect the car and never replied back. Some of them liked the car but feared about its resale. Others used to throw foolish offers.
In a nut shell, if you plan to keep the car in long run, then Wagon R won't disappoint you for sure, but like me, if you feel you would be selling it out in short run, then be prepared to face considerable loss at the time of resale. Choice is yours.