2026 Grand Design Lineage Series M 25TK

GRAND DESIGN LINEAGE Class C Motorized RV

Discover the GRAND DESIGN LINEAGE Class C Motorized RV built on a Mercedes-Benz Sprinter 4500 cab chassis—engineered for confident highway travel and comfortable, tech-forward living. With a 170-inch wheelbase, 12,125 lbs GVWR, and a twin-turbo 2.0L inline 4-cylinder diesel delivering 208HP/332 lb-ft, this 2026 model is ready for weekend escapes and longer road trips alike.

Power, Handling & Driver Confidence

Designed to help you stay composed in changing conditions, the drivetrain pairs a 9G-TRONIC automatic transmission with rear-wheel drive. Safety and assistance features include Active Brake Assist, Crosswind Assist, Attention Assist, Hill Start Assist, Electronic Stability Program (ESP), and multiple headlamp and lighting upgrades such as LED high-performance headlamps and LED tail/brake/marker/turn/backup lights.

Comfort & Connectivity for Every Drive

Inside the cockpit, enjoy the MBUX multimedia system with a 10.25-inch touchscreen, plus Apple CarPlay and Android Auto compatibility. The Thermotronic automatic climate control, heated multifunction leather steering wheel, and heated, power D/P seats with swivel functionality help make every mile feel effortless. Privacy shades and a comfort-focused driver package round out the experience.

Living Space, Storage & Everyday Convenience

This Class C conversion includes one slideout and a well-appointed interior with a 32-inch 12V LED smart TV in the living area and a second 32-inch 12V LED smart TV in the bedroom. The kitchen features a 10 cu/ft 12V 3-door refrigerator, a 2-burner stove with glass cover, and an air fry/convection microwave oven. For sleeping, the 70-inch x 80-inch king bed provides a comfortable retreat.

• Engine: 2.0L inline 4-cylinder high output twin-turbo diesel (208HP/332 lb-ft)
• Chassis: Mercedes-Benz Sprinter 4500 cab chassis with 170-inch wheelbase
• Transmission: 9G-TRONIC automatic / rear wheel drive
• Climate: 15,000 BTU A/C with 12K heat pump (ducted system)
• Slideouts: 1 slideout
• Bed: 70-inch x 80-inch king bed

Utilities & Off-Grid Readiness

Stay powered with a 1,800-watt Xantrax pure sine wave inverter, a 4,500kW NPS LP generator with auto-start capabilities, and StarLink satellite internet. The system also includes (3) 180-watt (600-watt total) Merlin solar panels with a 30-amp controller, plus a SureLevel tank monitoring system and a Truma Aqua Go Comfort on-demand water heater.

Want to see how this GRAND DESIGN LINEAGE Class C Motorized RV fits your travel style? Contact the dealer today or schedule a viewing to experience the layout, features, and finish in person—stock number 25511.