I don't see a lot of difference.

Body is styled different and wing also
lighter weight flywheel and spur
larger clutch bell
17mm big bore shocks, tq has 14 mm
exact same engine the macstar. 28
same looking tires and wheels
slightly larger fuel tank


The problem is that I don't see any parts available for it yet. Everything is Order Pending, because HPI hasn't gotten dealers the HoBao parts yet. So essentially, its a little lighter I suppose to be race ready but you can't race the .28 in the usual classes, have to go down to a .21. The price difference is about 50 bucks between the two cars. Its sharp looking. I would buy one if there were more discernable differences.