If you can be easy on your brakes (for track conditions), a 500E does really well IMHO-well balanced, powerful, and with great brakes. However, clearly it's one heckuva heavy ride, and while the brakes are more than adequate for the street they have a tough time hauling down a 2-ton projectile repeatedly.

I've done 30 minute sessions, and when braking conservatively they held up fine.

So get out there!

__________________
"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo