530i

If I want reliability and power, I daily this car, should I supercharge and tune my N52B30 or should I up my car to the 535i, get an N54, and be open to more tuning potential?

I wanted to know if the N54 can be daily driven and joyrided reliably if all preventative maintenance is done and all the shitty stock BMW parts are upgraded with better aftermarket parts, and the car is properly maintained.