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Toy Hauler

Grand Design RV Momentum M-Class 328m

Grand Design RV Momentum M-Class 328m

Compare specs across all model years (2015–2019)

5
Model Years
7
Sleeps
35' 11"
Length
16,500
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2015 Momentum M-Class 328m Best Choice

Lightest GVWR (16,500 lbs) makes it towable by more vehicles. Highest Mint Score (31.4).

View 2015 Full Specs & Tow Guide →

What Changed Year-Over-Year

2018 2019

Capacity Upgrade

Sleeping capacity increased from 7 to 8 with layout improvements.

2017 2018

Larger Fresh Tank

Fresh water capacity changed from 117 to 157 gallons.

2015 2016

Capacity Upgrade

Sleeping capacity increased from 6 to 7 with layout improvements.

All Model Years

Can Your Vehicle Tow the Momentum M-Class 328m?

Enter your truck specs to see if any of these model years fit your towing capacity—and which year gives you the most safety margin.

View Towing Calculator
Tip: Click a year to see the full specs, tow guidance, and recommended gear for that model year.

Leave the Noise Behind.
Reconnect Outdoors.

Our mission is to help people make well-informed RV buying decisions, so they can leave the noise and screens behind, reconnect with family, and create unforgettable memories in the great outdoors.

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