Bill,

I beat the CRAP out of my wagon on the street-the brakes are up to it. NO WAY you should be warping rotors, period. So, I'm thinking you have a stuck caliper upfront-that's where you need to focus. If not, then perhaps your master cylinder is not allowing all pressure to release (unlikely, though)

500E calipers require different hubs, BTW. But I seriously doubt you'd need to upgrade-just fix the excellent brakes you already have. And if front caliper rebuilds don't get you what you want, try cryotreating your rotors-worked for me (I was boiling & warping rotors at track events in my 500E)

__________________
"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