2018 Mercedes-Benz E63AMG S

The core issue is straightforward. Comparable 2018 E63 AMG S models are selling at a median of $42,000. Your asking price sits 257% above that benchmark. Even accounting for potential variations in mileage or condition, this gap is too wide to bridge through negotiation alone. Your own valuation puts the car's wholesale value at $50,000—still $100,000 below asking.

The vehicle itself is mechanically sound. It carries no open recalls, has relatively low mileage at 29,000 miles, and the depreciation curve is predictable for a six-year-old performance sedan. Those are positives. But they don't justify the asking price.

The financial reality compounds the problem. You'd be financing a depreciating asset at a massive premium, while carrying an estimated $3,500 annual maintenance burden—this is a high-cost car to own. Even if you could negotiate down significantly, you'd need to get the price substantially closer to market comps to make the economics work.

The dealer's reputation is undocumented, which adds uncertainty to an already questionable transaction.

Your next move: Get a professional pre-purchase inspection to confirm condition, then use that report as leverage in serious price negotiations. You should be targeting the $45,000–$55,000 range based on market data. Anything significantly above that remains a poor financial decision, regardless of the car's quality.