Used 2018 Mercedes-Benz G-Class for Sale near Arizona

Compare 2018 Mercedes-Benz G-Class Trims

The G-Class offers a range of luxury SUVs from the accessible G 550 to the powerful AMG G 63, catering to diverse preferences and budgets.

• Starting at $71,172
• Best MPG/MPGe: 13 city / 14 hwy
• Most Popular: AMG G 63 4MATIC

Trim Overview

Prices updated weekly from CarGurus listings.

Quick Compare Table

Listing prices sourced from CarGurus — updated weekly. OEM specs from manufacturer data.

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Trim Deep Dives

G 550 4MATIC — "Who It's For"

The G 550 4MATIC is the pick for shoppers who want luxury features without the high price of the AMG models.

• Avg. market price: $92,137 (updated weekly)
• MPG/MPGe: 13 city / 14 hwy
• Inventory: 579 listings
• View G 550 4MATIC listings

AMG G 63 4MATIC — "Who It's For"

The AMG G 63 4MATIC is the pick for shoppers who want high performance and luxury without compromise. It's also the most popular trim in the lineup by a wide margin.

• Avg. market price: $71,172 (updated weekly)
• MPG/MPGe: 12 city / 15 hwy
• Inventory: 1,467 listings — widest selection in the lineup
• View AMG G 63 4MATIC listings

G 550 4x4 Squared AWD — "Who It's For"

The G 550 4x4 Squared AWD is the pick for shoppers who want extreme off-road capability without stepping up to the higher-priced trims.

• Avg. market price: $141,888 (updated weekly)
• MPG/MPGe: 11 city / 11 hwy
• Inventory: 12 listings — lower availability; may limit negotiating room
• View G 550 4x4 Squared AWD listings

Trim Recommendations

Most Popular — AMG G 63 4MATIC

With 1,467 active listings, the AMG G 63 4MATIC is the clear volume leader in the lineup.

Browse AMG G 63 4MATIC listings

Best Budget Option — AMG G 63 4MATIC

At $71,172 avg market price — below the lineup median of $92,137 — it's the most accessible entry point.

Browse AMG G 63 4MATIC listings

Best for Fuel Economy — G 550 4MATIC

The G 550 4MATIC offers the best fuel economy in the lineup at 13/14 MPG.

Browse G 550 4MATIC listings

These recommendations are based on CarGurus' proprietary market data from November 12, 2026, CarGurus experts' opinions, and generative AI.

How much does the 2018 Mercedes-Benz G-Class cost?

Prices are up 3.55% year-over-year — a sign of continued demand for this model year.

There are 339 listings available, which gives you a modest amount of inventory to compare before you buy.

Is the 2018 Mercedes-Benz G-Class a good car?

The 2018 Mercedes-Benz G-Class stands out because it keeps the classic boxy G-Wagen identity intact while pairing it with a refreshed cabin and modern convenience features. For you, that means this model year offers the familiar rugged character and status-symbol appeal of the original design, along with updated tech and driver-assist equipment that make it feel more usable day to day. It is especially compelling if you want a luxury SUV with serious off-road credibility and a distinctive presence.

The market shows 31.9% of listings as good or great deals, which suggests there are still some attractive opportunities if you shop carefully.

Is the 2018 Mercedes-Benz G-Class reliable?

The 2018 Mercedes-Benz G-Class is described as a long-running design that had already been refreshed over the years, which points to a familiar formula rather than a brand-new platform. It also carries the kind of rugged character that helped make the G-Class famous in the first place, while adding modern cabin and driver-assist updates.

For used buyers, long-term ownership risk is tied more to expensive upkeep and the cost of keeping a premium, specialized SUV in top condition than to simple day-to-day use.

What should I look for when buying a used 2018 Mercedes-Benz G-Class?

At 70.5% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should run a vehicle history report on any candidate you are serious about and prioritize a pre-purchase inspection from a shop that knows luxury SUVs. Focus on body condition, signs of prior repair, and whether the cabin and electronics show the wear you would expect from a high-priced, heavily used vehicle.

Is now a good time to buy a used 2018 Mercedes-Benz G-Class?

This looks like a moderate, selective buyer's market: there is inventory to choose from, but the best examples still deserve quick attention.

• Deal availability: 31.9% of listings are priced as good or great deals.
• Inventory: There are 339 listings available.
• Price trend: Prices are up 3.55% year-over-year.
• Clean inventory: 70.5% of listings are accident-free.

If you find a listing below $80,558, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 Mercedes-Benz G-Class's resale value?

The current average of $85,989 sits slightly above last year's $83,044.

That upward move suggests the market has held value reasonably well for this model year. If you sell, you may benefit from the G-Class's strong identity and continued demand, especially if your vehicle has clean history and strong presentation. Well-kept examples should remain easier to position than neglected ones because buyers in this segment tend to pay for condition and provenance.

Should I buy a 2018 Mercedes-Benz G-Class or consider a different year?

If you're weighing the 2018 against nearby model years, here's how to think about it:

Choose the 2018 if:

• 31.9% of listings are priced as good or great deals.
• At 70.5% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices are up 3.55% year-over-year.

Consider the 2019 if:

• At $105,792, the 2019 costs more than the current year's $85,989 average.
• It brings a fully redesigned cabin with stronger modern luxury appeal.

The bottom line:
Choose the 2018 if you want the classic G-Class look and a lower entry price. If you are more focused on the newest design and can stretch your budget, the 2019 is the better upgrade path. For price-sensitive buyers, the 2018 remains the more approachable way to get into the G-Class nameplate.

How does the 2018 Mercedes-Benz G-Class compare to the 2018 Land Rover Range Rover?

These recommendations are based on CarGurus' proprietary market data from November 10, 2026, CarGurus experts' opinions, and generative AI.