If I were in your place, I would have gone for a Navigation Headunit (After Market), a reverse camera, a front camera, decent sound system with amplifier, sub and components if you are an audiophile, otherwise stock system is alright. In addition to that fog lights are a good addition. Decent aftermarket poshish can also give a addition to car’s interior.
PS: City’s drive is pretty stiff. Hence going for Yokohama Advan DB tyres would shift your ride to a bit softiness.