Really good car. Very durable. Extremely well balanced, especially in the air. Great corner speed and very easy to make it run well on all tracks. Only hopup you should invest in are the Diff covers from Alaste (Fredrik Emilsson) and ceramic diffballs. Had one and I regret selling it so I could buy a durango. Bad decision.
Buy from some HK based store like
www.rc-mushroom.com or
www.rcmodel.com.hk . Not often I get customs fee but when I do it it always a very low cost.
Buy it and be very happy. Wont find a nicer car to work with and drive.
I am going for the Cat but thats only because the cougar. Otherwise I would absolutely buy another 511. Like to run car of the same brand