Benz Mondi, since the 420SEL has an 8-cylinder engine maintenance will be more expensive and gas mileage will be less than the 6-cylinder engine you are accustomed to. Handling and acceleration may be slightly less than your 300E because it's a larger, heavier vehicle. Expect a luxurious ride on the highway. A PPI by MB-trained tech, who knows that model, is a must so you know what you are buying and how much it will cost to make the car right. Very few owners sell cars that are in excellent shape and need no immediate repairs. Unless you are a DIY'er that car could be a "money pit". Even then, it could be costly to bring it up to snuff.

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Fred Hoelzle