2026 Grech RV TERRENO-ion AWD Tour Plan Tenorite Grey

2026 Grech RV TERRENO-ion AWD Tour Plan Tenorite Grey

The 2026 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.

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.

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.

Features may include:

Timberline System

• Timberline diesel fuel fired heating system is standard on all Grech RV models. This system takes the luxuries of home to the outdoors with continuous flow hot water and heat fueled by the Sprinter diesel fuel all in a quiet, clean and efficient compact package. Timberline is specifically designed for Class B motorhomes.

Air Suspension

• Air suspension is standard on every Strada and Terreno motorhome. We have sourced the best air suspension system available for the Sprinter to provide the smoothest, most luxurious possible ride for your motorhome. Our air suspension systems feature an intelligent, electrically controlled auto leveling system for the ultimate ride stability.

Grech Power

• The new GRECH POWER™ system unites industry-leading technologies from Lithionics®, Garmin®, Fusion® Audio, Grech Connect™, ARCO Zeus, Victron Blue Power, and Starlink into one seamlessly integrated energy and control platform – delivering the most advanced and intuitive off-grid user experience available in any Mercedes-Benz Sprinter motorhome.

  Grech RV is proud to introduce GRECH POWER™, our most advanced and intelligent energy system to date – now standard on all 2026 model year Class B camper vans. Designed for true off-grid independence, GRECH POWER™ delivers clean, quiet, and powerful lithium-ion energy, setting a new benchmark in the Class B market. At the core of GRECH POWER™ is the industry-leading Lithionics® 51V lithium-ion battery system, delivering a remarkable 16,896 watt-hours (Wh) of energy – enough to run the motorhome’s rooftop A/C for up to 14 hours on battery power alone. Lithionics® 51V batteries are the only UL 1973 Certified lithium-ion batteries available to the RV market, offering industry-leading safety, reliability, and performance.

  The all-new 51V energy storage system also brings a significant leap forward in efficiency – recharging up to 50% faster compared to the previous 12V platform. Whether you’re exploring national parks, boondocking in the wilderness, or simply seeking more freedom from shore power, this system provides the ultimate off-grid adventures.

  GRECH POWER™ is more than a power system – it’s the future of luxury RV energy, this platform underscores our relentless pursuit of innovation, quality, and the freedom to explore – uninterrupted.

Interior:

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.

*Photos may show optional equipment and accessories not included in the base model. Standard features, specifications, and available options vary by model and floor plan. All information, descriptions, and images are subject to change without notice. Please contact Grech RV for the most current details.

• UltraLeather Seating Surfaces
• Hardwood Cabinets w/ Radius Doors
• European Veneers
• Memory Foam Power Sofa Bed
• Solid Surface Countertop
• Table with mount system
• Wet Bath w/ window, sink and porcelain toilet w/ macerator
• LED Accent Lighting Throughout
• 250 Watt Solar Power System
• Timberline Diesel Fuel Fired Hot Water and Heating System
• Garmin Integrations Control System
• Induction cooktop
• 24" LED TV w/ Apple TV
• Grech Connect™ Wi-Fi Remote Diagnostics
• Soft Touch Walls
• Fully Insulated
• Vinyl Woven Flooring
• Subfloor is 3/4” Insulation Board and 3/4” Honeycomb Composite.
• Automotion Power Window Shades
• Lithionics - Generator Replacement Lithium Battery System
• 3,000 Watt Victron Inverter
• Patio Screen Door
• Integrated Power Management System
• Apple and Android App Capable

Exterior:

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.

*Photos may show optional equipment and accessories not included in the base model. Standard features, specifications, and available options vary by model and floor plan. All information, descriptions, and images are subject to change without notice. Please contact Grech RV for the most current details.

• Custom Fiberglass Body Kit
• Concealed Stainless Steel Utility Center
• Power Awning w/ Wind Sensor
• Power Entry Step
• Alloy Wheels
• Air Suspension