Bridgestone makes the only compatible tires for the stock BMW i3, and for the next 6 weeks they are on sale at Costco, $110 off for the set installed. Several other tire shops quoted all around $800 installed. Through Costco is was $563 plus tax, $610 out the door for Los Angeles. I got the EP500s, the EP600s are maybe $50 more for the set, Summer vs All Season tires.
Pretty good deal for anyone who needs a set of tires for their i3. All Bridgestone tires are $110 off a set installed til April 14th I believe. I got 28k miles on my stock set but the tire shop said the rears are in pretty bad shape and the fronts are not going to last much longer either.