I put my BMW i8 on the dyno, got stock numbers and then the car was tuned and tested a few times.
We all learned a TON of information about the BMW i8 after running it on the Dyno. Please watch this video in it's entirety to learn more. There is a lot of data to consume, here, but I felt it was important to document the entire process.
Ultimately, I went home with a new map file on the car from Alex Meyers at Yorkshire DPF Centre. He had been tuning his own BMW i8 for a better driving experience. He's still developing a better tune, so this video is based on his map file at the time.