Not federal or Canada . . . believe all "non european" MB are limited to 150 or 155mph . . . easy enough to program limiter off . . . but that 190mph would sure be total top end, all in . . FEETS would probably have better idea on that . . . but man, best to do on track ! . . .
E55 was limited to 155 mph for all nations. The limiter can be reset to a higher 186 mph limit or removed completely. Some SL55s have been bumping 200 mph that way.
My little C55 (non-blower engine) tops at 172 mph because of the lower gears.
