Sidewinder and HPI esc

Hey guys, Im wanting to buy a sidewinder, and saw the HPI version, it has bullet plugs built into the esc (like a mini MMM) and like that way alot more then the wires soldered right to the esc, makes wiring the car easier.

Is it the same speedo? If I use a external BEC, is it going to handle 4s like the sidewinder? Its going in my crt.5