My Audi A6 has a Cd of 0.26. Comparing it to F1 makes no sense. They're open wheel.
I wouldn't say little.
Many F1 technologies have made it into production road cars and the future of the sport will see this technology sharing increase. That's why there was the big engine change last year. And it wouldn't surprise me if their split turbocharger design that was responsible for Mercedes success makes it into their road cars.
They're fun as hell and also uncomfortable as fuck. 400 miles is more of an endurance test for the driver than the power supply. (Also, loved every second inside both of them!)