Toy Hauler
Grand Design RV Momentum M-Class 350m
Compare specs across all model years (2015–2018)
4
Model Years
8
Sleeps
38' 9"
Length
16,500
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2018 Momentum M-Class 350m
Best Choice
Lightest GVWR (16,500 lbs) makes it towable by more vehicles. Highest Mint Score (30.6).
What Changed Year-Over-Year
2017
2018
Larger Fresh Tank
Fresh water capacity changed from 117 to 157 gallons.
2015
2016
Capacity Upgrade
Sleeping capacity increased from 7 to 8 with layout improvements.
All Model Years
Best Value
2018
2018 Grand Design RV Momentum M-Class 350m
30.6
16,500 lbs GVWR
2,825 lbs Hitch
38' 9"
Sleeps 8
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2017
2017 Grand Design RV Momentum M-Class 350m
30.1
16,500 lbs GVWR
2,825 lbs Hitch
38' 9"
Sleeps 8
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Check Towing
2016
2016 Grand Design RV Momentum M-Class 350m
29.9
16,500 lbs GVWR
2,900 lbs Hitch
38' 9"
Sleeps 8
↑ Sleeps 1 more than 2015
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Check Towing
2015
2015 Grand Design RV Momentum M-Class 350m
29.4
16,500 lbs GVWR
2,900 lbs Hitch
38' 9"
Sleeps 7
Original model year
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Check Towing
Can Your Vehicle Tow the Momentum M-Class 350m?
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.
Tip: Click a year to see the full specs, tow guidance, and recommended gear for that model year.
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