With GP deliveries just months away, quite a few folks are starting to ask various questions about production and real world power output. As always MotoringFile is here to help. We’re happy to report that we have some real answers to these questions from a few highly reliable sources.

The first step in production starts in Oxford. It’s there that the body shells for the GP are actually built. After all the metalwork that’s not needed is stripped out, they are primed and shipped to Italy. Once there, Bertone paints and assembles the final cars. The Italian portion of the assembly is essentially a hand build operation as they have none of the things like robot glazing cells or automated engine stuff that the MINI Oxford Plant has at it’s disposal. Interestingly we’ve been told that the quality control operations have been doubled at Bertone as compared to Oxford. One reason given is the simple fact that humans are not always reliable as machines.

Official output for the GP is listed at 218bhp (214hp). However this is the figure given on the car operating in any market worldwide. Thus fuel, ambient temperature, humidity and so on are all taken into account in that figure. Our sources report that MINI has found GP engines running premium 98 octane in cool damp conditions worked and gave more bhp than something running on 95 octane and extreme heat. Depending on where you live you might get up to 225bhp depending on climate and fuel quality. However that said, MINI expects an output of at least 218bhp (214hp) no matter where you are and no matter what premium petrol you put in the tank.

Once again according to our source, over 100 cars are now built with consistent daily numbers now coming through Oxford as the build process and learning curve improves. On the Italian end of production, the folks at BMW are reportedly very very happy with the end results out of Bertone so far.

You can expect more JCW GP updates throughout the summer culminating with a thorough MotoringFile review of the JCW GP in September or Early October.