it's a process. the result you get is not based on your LSP (Last Step Product).. it's in the PREP. conversely, there's no such thing as a wonder product that's gonna do it all for you and beat the results of a carefully prepped and detailed car.
examples of prep: polishing, cleaning, claying, surface correction...
with regards to Para-Lux, ganito na lang: I'd suggest you stick to the better "glazes" out there. yep, I've seen it..