The car is a standard 116i with the basic M-Sport suspension and basic steering and brakes. I have replaced the run-flats with 205/50-17 Michelin Pilot Sport 3 tires on 8x17" wheels. For use on the Ring, the car was pretty much perfect. Precise and stable, and the brakes are awesome. The rather soft suspension setup soaks up all the bumps, and makes it possible to ride some of the kerbs. The power feels a little bit lacking going uphill, but it does with most cars on that track.
The thing with soft suspension and high profile 16" tires makes it even easier to handle on the limit, but I think most people would find that setup sluggish and lacking in steering response. I kind of like cars like that, but you have to throw the car around a lot to be fast. Almost drifting around the track.
I have no video, since filming is not legal on tourist drives. I did GPS-log the dry lap on my phone, though.
