2018 Mercedes-Benz E63AMG S

The market is sending a strong sell signal. Comparable 2018 E63 AMG S models are selling for a median of $42,000—you're being asked to pay more than double that price. Even accounting for this vehicle's relatively low mileage (29,000 miles), the wholesale value sits around $50,000 to $58,000 depending on condition. You're looking at a $32,000 to $40,000 premium with no clear justification.

The depreciation picture reinforces this. A 2018 model is six years old and has already absorbed most of its value loss. The asking price assumes this car will hold value better than market data supports—it won't.

What you do need to factor in: this is a high-maintenance vehicle. Budget roughly $3,500 annually for routine upkeep, and that's before anything goes wrong. The E63 AMG S is a complex machine with expensive parts. On the positive side, there are no open recalls and no recall history on this production run, so you're not inheriting known defects.

The core issue isn't the car's condition or capability—it's the asking price disconnection from reality. Before you walk away entirely, verify the dealer's claims about mileage and service history. But your next move should be clear: use these comps to make a counteroffer in the $45,000 to $52,000 range and see if there's actual negotiation room. If the seller won't budge significantly from $90,000, this deal isn't worth your time.