Terreno-ion AWD
2025 MSRP Starting at $277,900
* Manufacturer's Suggested Retail Price. Excludes taxes, title, registration and dealer charges. Dealer sets actual selling price.
About
the 2025 TERRENO-ion AWD
Terreno-ion, our versatile Sprinter Motorhome, is the perfect complement to the Mercedes-Benz marque. The Terreno exemplifies what a luxury Class B motorhome should be with remarkable quality, craftsmanship and attention to detail never before seen in the Class B motorhome world. Adding our lithium-ion battery energy storage system to the Terreno provides clean and quiet lithium-ion-based energy that will power your entire Mercedes-Benz Class B Motorhome and give you peace of mind for your journey ahead. The luxurious amenities and functional features elevate your motorhome experience. Terreno-ion has the highest level of standard equipment in its class. It is built on the Mercedes-Benz Sprinter 3500XD 170” (non-extended) High Roof with a 4-cylinder Diesel engine.

Feature Video
Terreno-ion RV
Built on the Mercedes-Benz Sprinter 3500 170” (non extended), our Terreno Sprinter RV will raise the bar in the Class B market. The Grech-RV product line offers a return to hand-crafted coach-building with remarkable craftsmanship, unparalleled fit & finish, and attention to detail that sets a new standard of quality.
Browse InventoryGrech RV Motorhome Facility Tour
Manufacturing Process
Let us take you on a journey through the process of manufacturing at Grech RV!
We are committed to excellence through engineering on our entire motorhome line. Our renowned craftsmanship provides the industry’s highest quality Class B motorhome. The outcome of our uncompromising efforts is a product of beauty, reliability and longevity that will retain its value for many years to come. Our 165,000 square foot, state-of-the-art facility has production lines that are modeled after the most streamlined and efficient in the world, which provides consistency in the quality of every motorhome produced.
Watch Video ▷Features
Lithium-ion based energy
Air Suspension
Timberline System
Floor Plans
Interior
Features
When developing the Sprinter RV’s interior features, we wanted to keep your comfort and luxury in mind. Every surface and every material was chosen to be practical while still providing a subtle sophistication that Grech is known for.
The exterior lines of the Sprinter RV bring a thrill to your mind even when standing still. With thoughtful features like the power entry step and the power awning, this RV adds touches of luxury to your next adventure.
Exterior
Features
Full Specifications
Interior
Gallery
Entertainment
Electrical
Bathroom
HVAC and Plumbing
Exterior
Chassis
Lithium-ion Power Package
Dimensions
Warranty
Owner's Manual
- Ultraleather Rear Seating Surfaces
- Memory Foam Power Sofa Bed
- Bed: 66″W X 76″L
- (2) Captain Chairs (Lounge Floor Plan Only)
- Hardwood Cabinets w/ Radius Doors
- Soft Touch Walls and Headliner
- LED Ambient Accent Lighting
- Vinyl Woven Flooring w/ 3/4″ Composite Honeycomb Subfloor
- Automotion Power Window Shades
- Full Fiberglass Insulation
- Front Cab Floor Mat
- Safety Kit – First Aid and Fire Extinguisher
- Table w/ Mount System
Color Options

Iridium Silver

Grey White

Tenorite Grey











