Is Chemical Guys HydroSpeed worth it? Yes — it earns an 85/100 CGR Score as a ceramic quick detailer that actually extends protection between washes, lasting two weeks instead of the usual three days. We tested two bottles on our VW Touareg, BMW M3 Competition, and a VW Atlas throughout summer to see if the SiO2 ceramic additives deliver on their promise. HydroSpeed isn't a replacement for professional ceramic coating, but it's the best maintenance spray we've found for DIY car washers who want more than traditional spray wax. Protection holds strongest on shaded panels, with some degradation on sun-exposed surfaces.