Interstate Grand Tour Ext
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Q1nPH5I0GRgOverview
The Interstate Grand Tour EXT is a Class B RV that elevates your travel experience when you’re setting out on a long-term journey for two. The very first time you step inside the Grand Tour you’ll find we’ve thought of everything to make your trips more enjoyable – from cooking to freshening up to getting some rest. And it’s that kind of thought that’s made the Interstate line the #1 best-selling Class B diesel motorhome for the past six years. Explore more of the Grand Tour, and then get ready to explore the world around you in complete comfort.
Floor Plans
Specifications
Specs
| Grand Tour EXT | Grand Tour EXT Twin | |
| Microwave | 1.2 cu. ft. Drawer Microwave | 1.2 cu. ft. Drawer Microwave |
| Chassis | Mercedes-Benz® Sprinter 3500 Extended | Mercedes-Benz® Sprinter 3500 Extended |
| Engine | Mercedes-Benz® 3.0L V6 Turbo Diesel | Mercedes-Benz® 3.0L V6 Turbo Diesel |
| Emissions | BlueTEC SCR Technology, 50 State – EPA/CARB Standards | BlueTEC SCR Technology, 50 State – EPA/CARB Standards |
| Horsepower | 188 HP / 325 lbs torque | 188 HP / 325 lbs torque |
| Transmission | 5 Speed Automatic | 5 Speed Automatic |
| Axle Ratio | 3.92 | 3.92 |
| Wheelbase | 170″ | 170″ |
| MPG* | 18+ Estimated Highway | 18+ Estimated Highway |
| Chassis Safety System | Mercedes-Benz® Adaptive ESP® (Electronic Stability Program) | Mercedes-Benz® Adaptive ESP® (Electronic Stability Program) |
| GVWR/GCWR | 11,030 lbs/15,250 lbs | 11,030 lbs/15,250 lbs |
| UBW | 9,050 lbs 2WD/9,325 lbs 4WD (add 90 lbs for Air Susp/275 lbs for Jacks) | 8,684 lbs 2WD/8,959 lbs 4WD (add 90 lbs for Air Susp/275 lbs for Jacks) |
| OCCC | 1,980 lbs 2WD/1,705 4WD (deduct 90 lbs for air suspension and 240 lbs leveling jacks) | 2,346 lbs 2WD/2,071 4WD (deduct 90 lbs for air suspension and 240 lbs leveling jacks) |
| Tow Package | Mercedes-Benz® Hitch, 7 Pin Trailer Plug, Brake Control Pre-wired | Mercedes-Benz® Hitch, 7 Pin Trailer Plug, Brake Control Pre-wired |
| Tow Capacity** | Up to 5,000 lbs | Up to 5,000 lbs |
| Trailer Safety System | Mercedes-Benz® Trailer Stability Assist System | Mercedes-Benz® Trailer Stability Assist System |
| Overall Length | 24′ 4.5″ | 24′ 4.5″ |
| Overall Height | 9′ 8″ 2WD/9′ 11″ 4WD (inc A/C & Antenna) | 9′ 8″ 2WD/9′ 11″ 4WD (inc A/C & Antenna) |
| Overall Width | 6′ 7.7″ | 6′ 7.7″ |
| Interior Height/Width | 6′ 2.25″ / 5′ 10″ | 6′ 2.25″ / 5′ 10″ |
| Tank Capacities | 26 gals (Fresh), 27 gals (Gray), 14 gals (Black) | 26 gals (Fresh), 27 gals (Gray), 14 gals (Black) |
| LPG | 14.55 gals (61.9 lbs) 77% fill | 14.55 gals (61.9 lbs) 77% fill |
| Diesel Fuel | 24.5 gals | 24.5 gals |
| Air Conditioner | 13,500 BTU | 13,500 BTU |
| Furnace | 16,000 BTU | 16,000 BTU |
| Water Heater | 60,000 BTU On-Demand Continuous Flow | 60,000 BTU On-Demand Continuous Flow |
| Heated Tanks | Fresh and Gray Tanks (12 volt) | Fresh and Gray Tanks (12 volt) |
| Refrigerator & Freezer | 5.0 cu. ft. Fridge/1.6 cu. ft. Drawer Freezer (110 volt) | 5.0 cu. ft. Fridge/1.6 cu. ft. Drawer Freezer (110 volt) |
| Cooktop | 2 Burner with Integrated Cover | 2 Burner with Integrated Cover |
| Safety Components | LP Gas Detector, Smoke and CO2 Alarm, Fire Extinguisher, First Aid Kit | LP Gas Detector, Smoke and CO2 Alarm, Fire Extinguisher, First Aid Kit |
| Plumbing System | Macerator Pump System | Macerator Pump System |
| TV Antenna | Omni Directional In-motion VHF/UHF | Omni Directional In-motion VHF/UHF |
| TV Cable | Cable TV Outlets/Hook-ups | Cable TV Outlets/Hook-ups |
| TV Satellite | Pre-wired for Satellite Dish | Pre-wired for Satellite Dish |
| Electrical System | Touch Screen/Touch Pad Electronic Controls with Energy Management System | Touch Screen/Touch Pad Electronic Controls with Energy Management System |
| Converter/Inverter | 50 amp Multi-stage Charger, 1,000 Watt Pure Sine Inverter | 50 amp Multi-stage Charger, 1,000 Watt Pure Sine Inverter |
| Generator | 2.5 kW (LPG) with Auto Start and Ultra Quiet Resonator | 2.5 kW (LPG) with Auto Start and Ultra Quiet Resonator |
| Batteries (Coach) | 4 – 12 Volt Deep Cycle Maintenance Free Group 24 AGMs | 4 – 12 Volt Deep Cycle Maintenance Free Group 24 AGMs |
| Shore Power | 30 amp/110 Volt Service | 30 amp/110 Volt Service |
| Solar Power | 300 Watt Solar System | 300 Watt Solar System |
| Support | 24/7 365 Roadside Assistance | 24/7 365 Roadside Assistance |
| Airstream Warranty*** | 3 Years/36,000 Miles | 3 Years/36,000 Miles |
| Mercedes-Benz® Warranty*** | 3 Years/36,000 Miles | 3 Years/36,000 Miles |
| Mercedes-Benz® Engine Warranty*** | 5 Years/100,000 Miles | 5 Years/100,000 Miles |
Safety
| Grand Tour EXT | Grand Tour EXT Twin | |
| Blind Spot Assist | STD | STD |
| Collision Prevention Assist | STD | STD |
| Front & Rear Parking Assist | STD | STD |
| High Beam Assist | STD | STD |
| Lane Keeping Assist | STD | STD |
| Multiple Safety Impact Air Bags | STD | STD |
| Rain Sensing Windshield Wipers | STD | STD |
| Rear & Side Camera Assist | STD | STD |
| Spare Tire | STD | STD |
Exterior
| Grand Tour EXT | Grand Tour EXT Twin | |
| 110V Outlet | STD | STD |
| 3M® Protective Film Rear Bumper | STD | STD |
| 4-Wheel Drive | OPT | OPT |
| Air Ride Suspension | OPT | OPT |
| Alcoa® DuraBright Aluminum Wheels | STD | STD |
| Bi-Xenon Headlights with Washer System | STD | STD |
| Exterior Shower with Hot & Cold Water | STD | STD |
| Fog Lamps | STD | STD |
| Full Body Kit | STD | STD |
| Heated Windshield | STD | STD |
| Hidden Hitch Cover Rear Bumper | STD | STD |
| Hydraulic Leveling Jacks | OPT | OPT |
| LED Lighting - patio, service box locations, awning (adjustable), under carriage (adjustable) | STD | STD |
| Locking Service Boxes | STD | STD |
| LP Accessory Hook-up (Grill) | STD | STD |
| Power Armless Awning with Auto-Retract | STD | STD |
| Power Entry Step (sliding side door) | STD | STD |
| Power Heated Mirrors | STD | STD |
| Power Rear Screen | STD | STD |
| Side Screen Door (Sliding Panel) | STD | STD |
Cockpit
| Grand Tour EXT | Grand Tour EXT Twin | |
| Cockpit Carpet Floor Mats | STD | STD |
| Entry Door Lighting | STD | STD |
| Heated Driver/Passenger Seats | STD | STD |
| In-Dash Maintenance Monitoring System | STD | STD |
| Locking Glove Box | STD | STD |
| Multifunctional Steering Wheel | STD | STD |
| Overhead Map Lights | STD | STD |
| Privacy Shades | STD | STD |
| Rear & Side View Camera Monitor | STD | STD |
| Tilt & Telescopic Steering Wheel | STD | STD |
| Touch Screen NAV/SAT Radio/DVD System (8″) | STD | STD |
Main Cabin
| Grand Tour EXT | Grand Tour EXT Twin | |
| Additional Rear Seat | OPT | – |
| Adjustable LED Lighting | STD | STD |
| Blu-Ray™ DVD Player | STD | STD |
| Built-in Workstation | STD | STD |
| Dupont Corian® Pedestal Table (1) | STD | STD |
| Fantastic© Fan with Rain Sensor | STD | STD |
| Flush-Mount & Solid Shut Cabinets | STD | STD |
| Golf Bag Storage | OPT | OPT |
| High Gloss Laminate Cabinetry | STD | STD |
| LED Widescreen HDTVs (2) | STD | STD |
| Magic Suede® on Walls & Window Coverings | STD | STD |
| Overhead Wardrobe Closet | OPT | – |
| Pantry with Built-In Drawers & Shelves | STD | STD |
| Pass-Thru Rear Storage | STD | – |
| Plank Style Synthetic Flooring | STD | STD |
| Power Day/Night Window Shades | STD | STD |
| Power Rear Sofa | STD | – |
| Rear Cabin Carpet Kit (Black) | OPT | OPT |
| Rear Hidden Floor Storage (N/A with Air Ride Suspension) | STD | – |
| Riveted Aluminum Porthole Door | STD | STD |
| Signature Aluminum Ceiling & Trim | STD | STD |
| Twin Rear Beds | – | STD |
| Ultraleather® Seating | STD | STD |
| Under Bed Storage Solutions | – | STD |
| USB Charging Ports | STD | STD |
Galley
| Grand Tour EXT | Grand Tour EXT Twin | |
| Cooktop with Integrated Cover | STD | STD |
| Dupont Corian® Countertop with Backsplash | STD | STD |
| Dupont Corian® Galley Flip-up Shelf | STD | STD |
| Sink with Integrated Cover | STD | STD |
Bathroom
| Grand Tour EXT | Grand Tour EXT Twin | |
| One-Piece Shower | STD | STD |
| Retractable Clothesline | STD | STD |
| Sink with Articulated Mirror | STD | STD |
| Toilet | STD | STD |
| Towel Rack | STD | STD |
Features
Interstate Spotlight Video - Take a closer look at the Interstate – both inside and out. See how the Grand Tour and Lounge floor plans compare to each other, and how the best is built into every area.
Sleeping space choices to fit your needs - The Grand Tour is designed for long-term trips for two, so it offers a choice in sleeping accommodations to suit your needs – each one luxuriously comfortable. Select from a power sofa that becomes a full rear bed or separate twin mattresses in the rear of the RV. You can even slide the twin mattresses together in the center for a full, fixed bed option.
Work station to keep you caught up - When you need to reply to some emails or get some work done while you’re on the road, the Grand Tour’s built-in work station is the perfect spot. The driver’s seat swivels around to become your chair, and the desk is made of the same Corian® countertop from the kitchen. USB charging ports are right where you need them, along with a reading light and a TV.
Thoughtful, versatile bathroom - The European-style bathroom neatly houses a sink, shower, and toilet, plus a built-in shampoo, conditioner, and body wash station and a clothesline. Every inch of the space is designed to get wet, and every function is smart and efficient. The showerhead doubles as the faucet, the mirror extends and swivels, and there’s a totally waterproof toilet paper cover.
Mercedes-Benz® performance and safety - The powerful Mercedes-Benz 3.0L V6 turbo diesel engine makes the Interstate Grand Tour driving experience so enjoyable – with powerful getup balanced with impressive fuel economy. And standard-setting Mercedes-Benz safety features are everywhere you look in the Grand Tour, including lane keeping assist, collision prevention assist, rear- and side-view cameras, the most airbags available from Mercedes-Benz, and a FUSION® Infotainment System with Garmin navigation and lane guidance.
Airstream Air Ride Suspension - The rear of the Grand Tour is equipped with our exclusive optional Air Ride Suspension which adjusts itself to bumps in the road, changes in elevation, and changes in wind resistance, so you can enjoy a smooth ride, mile after mile.
Four-wheel drive, whenever you need it - An optional on-demand four-wheel drive system from Mercedes-Benz gives you added stability and control. When you press the button, Load-Adaptive Electronic Stability and Electronic Traction systems work together to ensure your Grand Tour is prepared for inclement road conditions.
Sleek exterior color choices - The Grand Tour’s exterior is designed to impress just as much as the interior does. Its clean lines and elegant angles take center stage in each of the three available color choices.