The speedometer on my '88 300e has roman numerals I, II, III (sans serif) at provocative locations. Can one safely manually shift the trans to sate one's urge to go fast? Is that the purpose of those curious numbers?

Furthermore, the nomenclature of the roman numerals does not seem to match the shift. does 2 on the shifter = I on the speedometer, 3=II and III=D?

III on my 300e is set at 160kmh; this is ok?

anon!

fd/