RE: what advantages does the baja 5sc have over the 5b?
The SC is also more prone to body damage, just because the body is exposed a lot. The 5B body is within the vehicle footprint, and is much cheaper to replace if it breaks. You can always put 5SC wheels and tires on the 5B if you want. Either can accept wideners, chassis mods, and almost all hop ups are good for both. Basically it boils down to what style you prefer.