Recently, we reported that BMW has begun offering a kit for M3, M5, and BMW M6 owners that would remove the speed limiter that usually keeps the car from exceeding 155 mph (250 km/h). Unfortunately, this kit is only available in Europe. For some time, Mercedes’ AMG tuning group has offered a similar kit in Europe. This summer, according to Ward’s Auto Mercedes brought the package stateside. This means AMG cars can now reach their true speed potential — in some cases, approaching 200 mph (322 km/h). In the 1980s, several German automakers entered into a “Gentleman’s Agreement” that their cars would not exceed 155 mph.
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