I have been reading up on some older large size sedans including the W140 MB, 1997 BMW 7 Series E38, Audi A8, Infinti Q45, 1995 Lexus LS400 and one article on the 1999 Acura RL mentions how Acura engineers have worked overtime figuring out how to make this car quiet and vibration-free. Innovations like low-friction ball joints in the suspension, Teflon seals on the valves, a liquid-filled rear-trailing arm, foam-filled B- and C-pillars, honeycomb floor panels and vibration absorbing seats are just a few of the things the 3.5RL serves up to make you forget that you are in a car. I can see how that can add a few hundred pounds to a car easily.

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1989 300CE Astralsilber/Schwarz
1992 300CE Schwarz/Schwarz