The following shops have worked on Spec3 race cars before or have expressed interest in servicing these cars

Spec3 cars rarely come up for sale given the rapid growth of the series and the lack of people leaving the series. When they do come up, they sell very quickly and may never be publicly listed. If you would like to purchase a Spec3 already built, you should first make a “want to buy” post in the Spec3 discussion group on Facebook. However, it is unlikely you will find one for sale so consider that any shop that builds Spec E30s, Spec Miatas, Spec E46s, or similar can build a Spec3. A Spec3 build is simple enough for a normal person to do in their garage, so most any BMW shop could assemble a Spec3 as well. The following shops are good options, but not the only options.