First of all are you sure the lights are correctly adjusted?
I assume you have typical tungsten bulbs (probably H7).
In a 3 years old car the plastic on the headlights can be already sanded / faded / oxidized. Please post a photo of the headlight (with the lights off) from a short distance.
Then, there are some magic +120%, +150% more light bulbs, but in general they are crap.
Was the 500 available with full LED headlights? If so, if the adjustment + the plastic is correct, it would be the best to retrofit the factory LED headlights. This of course will be the most expensive mod