If I interpret you right, you're the big challenge maybe batteries, but what do you see as in from the other side from the manufacturer side? Is it the infrastructure? Is it the battery? What is it that's the challenge? Well just to to tag on to the motorsports topic for just a second because you know I love motorsports and I had the good fortune to spend a few years in Formula 1. When we went semi-electric and I know you live around the corner from our Formula 1 facilities. If you want to win in Formula 1 today the pinnacle of motorsports. If you don't have the best integrated electric powertrain combined with a combustion powertrain, you're not going to win. And that's what we have had the good luck of managing the last three seasons with double championships. So it is a test bed for new innovative technologies under extreme conditions. Absolutely extreme conditions. So we can learn in that field and of course create the fascination of the bus of the race drivers fighting for the championship. On the other end of that you mentioned industrialization. This will be key. I brought this picture with me which is I believe it's the largest battery factory in Germany for complete battery systems perhaps even in Europe. We have decided to invest in this facility another 500 million over the next few years and on a worldwide basis in facilities like this where we have the production and we'll have the production of our electric cars into the billions. And we need to ramp up the infrastructure to be able to get to the volume because if you want to flick the switch and you want to have a real paradigm shift it's not enough if you just do a car here or a nice show car and you put it out there you got to go into real volume which means for a brand like Mercedes hundreds of thousands of vehicles per year. And as we're doing the development we are working on the industrialization side of this at the same time and it's already quite the far ahead. Okay how about we