Interstate Grand Tour Ext

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Overview

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

2 Sleeps
7 Seats
Interstate Grand Tour EXT
2 Sleeps
2 Seats
Interstate Grand Tour EXT Twin

Specifications

  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
  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
  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
  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
  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
  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
  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.