I finally got a new set of tires installed this week. So now all tires have the same circumference. And just as Arthur Dalton said, the speed control is now working above 70 mph without issue.

Thanks for the help. I have 180kmi on the clock and I'm off towards 250 kmi!

__________________
Tom Latos
2002 E320
1995 E320 Sold at 288kmiles