[Dalko43]

I watch IMSA racing quite a bit. With all the private and factory team involvement, it's quite interesting and fun to watch.

But, for the life of me, I can't figure out why BMW chose the M6 platform to base its new race vehicle off of. Both the GTLM (equivalent of GTE in European and Le Mans Racing) and GTD (roughly the equivalent of GT3 in Euro) BMW teams are using the M6. Why?

And what was wrong with the Z4 platform they were using previously? I do think it was kind of BS that BMW raced a NA V8 in a Z4, even though they really didn't make those models for road-going consumers, but still that car seemed to be a lot more nimble for racing applications than is the current M6.

And, why did they not use M4 platform instead? The M6 certainly looks cool, but it just seems way too big to be a true competitor.

Anyone have a guess on this?