W463 vs W464 Generations
The 2018 W463 redesign brought modern tech while keeping the classic look. Earlier W463 models are more basic but also more reliable. The W463 has been in production since 1990 with continuous updates, making it one of the longest-running vehicle designs in history.
The 2018 refresh brought a fully redesigned interior with modern infotainment, improved insulation, and updated suspension. However, it retained the iconic boxy styling and solid axle construction that define the G-Class character.
- Pre-2018: More utilitarian, simpler mechanics.
- 2018+: Modern luxury, more complexity.
- G63 AMG: Extreme performance, extreme costs.
Engine Options
The G-Class offers powerful V8s across the range. The biturbo V8 in G63 and G65 provides effortless performance but at significant fuel cost. The G500 with the 4.0L biturbo offers a balance of capability and economy.
| Model | Engine | Power | Years |
|---|---|---|---|
| G 350 d | 3.0L diesel | 286hp | 2019-present |
| G 400 d | 3.0L diesel | 330hp | 2019-present |
| G 500 | 4.0L V8 biturbo | 422hp | 2018-present |
| G 63 AMG | 4.0L V8 biturbo | 577hp | 2018-present |
| G 65 AMG | 6.0L V12 biturbo | 630hp | 2015-2018 |
Unique Characteristics
The G-Class drives differently than other SUVs. Solid axles and high center of gravity affect handling. The steering is truck-like compared to modern luxury SUVs, but this adds to the authentic, purposeful feel.
The three differential locks are functional and can be engaged on the move - a genuine off-road capability that many owners never use but appreciate having.
- Door slam is iconic but seals need care.
- Solid axles: great off-road, firm on-road.
- High fuel consumption in all variants.
Common Issues
The G-Class is generally robust but has specific weaknesses. The door seals on pre-2018 models can deteriorate, leading to water leaks and wind noise. The suspension components, while durable off-road, can wear with on-road use.
| Component | Issue | Repair Cost |
|---|---|---|
| Door seals | Wind noise, water leaks | $500-1000 |
| Suspension | Bushings, arms wear | $1500-3000 |
| Transfer case | Differential noise | $2000-4000 |
| Glow plugs | Diesel starting issues | $300-600 |
| Window regulators | Motor failure | $400-800 |
Ownership Costs
Fuel consumption is high across the range - expect 12-18 mpg regardless of engine. The G63 with its 26.4-gallon tank provides decent range but frequent fill-ups are inevitable.
| Model | Avg MPG | Annual Fuel Cost (15k mi) |
|---|---|---|
| G 350 d | 22 mpg | $3,200 |
| G 500 | 15 mpg | $4,700 |
| G 63 AMG | 14 mpg | $5,000 |
| G 65 AMG | 12 mpg | $5,800 |
Investment vs Utility
G-Class values remain strong, especially for AMG models. Buy for the character and capability, not for value. The G-Class commands a premium that has proven resilient through economic cycles.
Look for examples with full service history and careful ownership. The best value is often found in well-maintained non-AMG G500 models with the latest updates.