My 87 300E is just about spot on 3k at 65mph. According to the tech info on the early 300E under the 'cars' section at the top of the page, " The early 300E's had a 3.07 rear differential to make up for the lack of low end torque while the E320 made due with a 2.65 ratio"
2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)
Click to see 87 300E