Mercedes-Benz G400d Turbo Diesel 463A – Alliance Auto Care’s Ultimate Shop Truck

What does a G-Wagen expert drive every day? At Alliance Auto Care, we work on G-Wagens across every generation—from 460s to 463As—and we knew our shop truck had to represent the future of the platform while still holding true to the G-Class legacy.

Introducing our daily driver: a 2021 Mercedes-Benz G400d Turbo Diesel, chassis code 463A. This isn’t your typical G550 or G63—it’s a rare Euro-spec diesel G400, completely emissions-compliant in the U.S. and titled here in Colorado.

Why the G400d? As diesel enthusiasts and G-Wagen specialists, we wanted a vehicle that was efficient, forward-thinking, and capable of handling both daily use and deep platform development. This truck is equipped with:

• Turbo diesel engine (330hp, upgraded to 480hp)

• Switch Pros accessory controller

• Hutchinson beadlock wheels

• GOI no-drill roof rack (we were the prototype test truck)

• Baja Designs lighting system

• Lift springs + larger tires

• NO factory sunroof or running boards—by design

Even with all the upgrades, it remains surprisingly refined. With 18–19 MPG in town and high 20s on the freeway, it’s hard to believe you’re in a nearly 5,800 lb G-Wagen. The diesel powertrain is smooth, quiet, and exceptionally clean—there’s almost no smoke, smell, or cabin noise.

Inside, it’s modestly spec’d: base seating, Switch Pros touch panel, and factory cupholders (finally!). And yes, your “big dumb cups” fit in the doors—thoughtful, indeed.

That said, it’s not without quirks. The lane-departure system aggressively brakes to correct your path, which can be more jarring than helpful. And although this new chassis is incredibly refined for road use, the older solid-axle G-Wagens outperform the 463A in rugged off-road conditions due to thinner control arms, lighter suspension components, and a smaller steering rack.

We’re addressing that with our own custom bumpers, sliders, suspension solutions, and tubular control arms—because that’s what we do. Our goal is to help push the 463A platform further for everyday owners and serious overlanders alike.

Whether you’re 99% on-road or dreaming of a custom diesel G-Wagen build, we can help you import, title, and upgrade a G400d or other global G-Wagen variants.