Guys Guys Guys...
Our cars are tune to run on 95 octane. Runnning them on 91 will not help the engine in the long run. Using 95 or higher is the right thing to do.
P.S our cars have a commen problem with the fuel needle sometimes showing empty when we have a 1/4 tank left.
We all have the potential to get over 800km in the Coupe and make 900km in the Gt8.