You might look through this website if you want to see what's out there for parts upgrades and accessories for your Buddy. A Prima windscreen, as seen on
www.scooterworks.com, makes the ride more enjoyable.
As already mentioned, I highly recommend adding the Prima Rear Rack and a top case. I've seen folks say that top cases "ruin the lines of the bike"; however, the addition of the case makes the functionality of the bike increase dramatically. The K-Max top cases are good quality but I would personally go with a larger Givi case and a Givi universal mounting like this one on Amazon:
https://www.amazon.com/Z113C2-Universal ... 5483&psc=1. Givi offers two different types of cases, their Monolock series and Monokey series. The Monolock series cases are only designed for use as a top case, while the Monokey cases can be used as a top case or side case (mostly irrelevant on a Buddy). Be sure the mount matches the case type. I have a Givi top case somewhere in the 48 liter range and although it sort of overwhelms the back of my buddy, it gives me all kinds of extra space for helmets, gloves, groceries, computer, etc (not necessarily all at once.

). I have even carried a 30-40 pound bag of dog food in it (but I wouldn't recommend doing this on a regular basis). Additionally, since it's not specific to the Buddy, I can switch it between the Buddy, my Genuine Black Cat scooter, and my Piaggio MP3 depending on which one I want to ride (all need a mounting plate however).
The disabled lights are disconnected turn signals down on the lower front sides, routinely referred to as the "dead lights". They are the turn signals used in most of the rest of the world but are disconnected in favor of the DoT turn signals mounted underneath the handle bars her in America. The wiring and light bulbs are generally still in place even though they are not connected to the electrical system. With a little bit of skill and knowledge, they can be reconnected to provide a cleaner look to the bike (if you remove the DoT lights) or be used in addition to the DoT lights with the use of the various wiring harness adapters to be running lights or additional turn signals to increase visibility. Voodoo Scooter parts (search for their thread on this forum) sells these wiring harnesses and also sells a brake light modulator that flashes the brake lights rapidly during braking to improve rearward visibility.
http://www.modernbuddy.com/forum/topic29569.html