I have been interested too. My concern is whether it will fit in the current wheels on the vehicle, actually I am more concerned about the Sport Edition SM3s I have in the garage, (yet to complete). I do not want to add spacers as my favorite tire store America's Tire does not touch cars with spacers, and I am not going to enlarge to a 16 inch wheel as well, because of ride harshness, as well as extra cost! I want to ask them if they have brake profiles to print, cut out, and test fit to wheels, just haven't gotten to it. When I inquired about product availability a long time ago they didn't have the brake kits in the 451 section, but they assured me the 450 ones fit, and now they've updated their site with corresponding part numbers in the 451 section.You can order two different rear disc brake set ups. Oversized and stock. From S-Mann directly and they will ship to the US. Last month when I did the math, it was about $900.00 US. to have the standard size shipped. Here is their site.
S-Mann - Specialized in products for all Smart models.
I want to do this to the car soon. My mechanic said he has done the rear drum to disc change, on Honda Civics and it has improved stopping distance greatly.
I asked for brake profiles, sent an image of a Rotora one, and got back the same image with dimensions, for a front kit, written on it. ? Hence I didn't respond sooner. I am also out of town since last Wednesday as well...thanks to all i will try the vw people
Is the VW 3x112? (If I'm even correct about that with regards to the smart). I sent an email to Wilwood, but nobody seems to have responded. They are not too far from me that I could volunteer mine for fitment....if the vw application works there is aprovision for an e brake ,i have done a disc conversion on a vw .