What up gainsy!
I might have seen that SX3 once or twice

- its a hell of a good car.
In mine, I run the Speed Passion GT2.0 which is very very good.
Mever had an issue with it once in nearly two years now.
Couple of the other lads from Ireland that were over at oOple withme also run SP in theirs.
Hobbywing seem to be exactly the same ESC but less expensive?!
However, the SP ones can be picked up for cheap in the classifieds - thats where I got mine.
P.S. I dont think the ESC footprint is of the biggest concern, I actually think you can choose from quite alot - however, the wiring is the one thing I recommend spending quite a bit of time planning out and doing right as the SX3 with all its belts can be a bugger if not wired correctly.
(Tom Cockerill had a great post with pics about this in the Schumacher section which I pilfered from

)