[ScorpiusWireless]

Still not plug-and-play without soldering 

Scorpius and Oxigen are aimed at the clubs, so you can run up to 20/24 cars on one track.
At home on my 16m Scalextric 4 cars is enough and 6 is plenty so SSD with the Arc Pro fills al my bills, but some will have different needs or opinions.

Yeah but I have real analogue with real brakes for $30 
And adjustable for both digital and analogue. 
This carves 10ths off lap times but more importantly makes for a far better driver experience 

Try the crimp on terminals if soldering isn’t your thing.