They're clearly different just looking at the bottle. Edge Professional TWS is the newer formula, hence API SN (versus SJ). Overall it's a stouter formula -- higher flashpoint and stronger additive pack. Also worth noting is that it appears to be about 10% thinner. TWS Motorsport is basically the old formula.
I would've been interested to see virgin/starting TAN.
2011.5 AW M3 sedan ZCP