Ive not tried the Turbo s**t from Sonax but i read its a massive improvement over Brilliant Shine Detailer, Ill be trying the turbo s**t this weekend hopefully. BSD is great and has some of the most amazing beading Ive ever seen along with excellent durability (maintains tight beading even after about 6 washes even on lower panels), but there's some annoying issues with application. Never had a QD, wax or sealant like it, but its more of a spray sealant than a QD. If youre after something to maintain gloss and beading after a wash then consider the turbo s**t or BSD, or even if youre just after a stand alone product thats quick and cheap to use. A lot of QD's look good but are actually f**king s**t and retract much of the water and dirt repellent qualities of a sealant or wax which in my opinion defeats the purpose of applying a wax in the first place. Z8 is another all time great to consider but I would take BSD/Turbo s**t over it any day. Theres also the carnuba based Sonus QD which is amazing, but will mask beading of whats underneath.
I just read youre after waterless wash. look into ONR, optimum no rinse, but avoid using it in winter and if the car is anything but dusty. You can run over the car with a QD after, Z8 or Carnuba Spritz would suit your needs as they are easy to apply and look great.