As the IMSA Weathertech Sports Car Championship enters its final leg, we were treated to an exciting race on Wisconsin’s Elkhart Lake road course where, finally, Cadillac’s stronghold was broken. Last weekend’s action at Road America got underway in difficult, mixed, weather conditions which meant not much valuable data could be gathered for what was forecast to be a dry race. That is, until the third and final free practice session but even that didn’t go all the way. Katherine Legge suffered a significant crash in the fast Canada Corner (anyone recalls her Champcar shunt there?) which almost ruled out the No. 93 Acura she shares with Andy Lally.