Inventory collection
10 motorhomes that sip fuel: the Class B and small Class C short list
Class B vans and Class C coaches whose listings mention a Sprinter, Transit or ProMaster chassis, a diesel, or fuel economy. Newest first.
Fuel economy on a motorhome is decided by class and chassis long before options. This list is limited to Class B and Class C units whose dealer description mentions a Sprinter, Transit or ProMaster chassis, a diesel engine, MPG or fuel economy — the shapes that go furthest on a tank. Per-unit MPG is not published on this site, so the list is by class and chassis, not a measured figure; ask the dealer for the chassis spec and real-world numbers.
- 1
2020 Winnebago Porto 24P
$87,977
Haltom City, TX · United RV Center
Why it made the list Twenty-four feet on a Mercedes-Benz Sprinter chassis, with a full-length driver-side slide that opens up the whole cabin for $87,977.
Class C · Listing mentions “sprinter” and “diesel”
- 2
2027 Grand Design Lineage Series VT LVT1
$179,895
Franklin, TN · Nashville RV
Why it made the list All-wheel drive plus a motorized projector screen makes this 2027 Lineage van the rare camper that doubles as a rolling theater.
Class B · Listing mentions “transit”
- 3
2027 Thor Motor Coach Sequence 20L
$108,995
Franklin, TN · Nashville RV
Why it made the list Opposing sofas convert into a 74-by-80 sleeper, so two people travel light in this $108,995 Sequence 20L.
Class B · Listing mentions “promaster”
- 4
2023 Forest River Forester MBS 2401B
$84,985
Franklin, TN · Nashville RV
Why it made the list Under $85,000 gets you a diesel Forester with leather swivel captain's seats, a U-shaped dinette and a cab-over bunk.
Class C · Listing mentions “diesel”
- 5
2027 Grand Design Lineage Series F 31ZW
$279,985
Franklin, TN · Nashville RV
Why it made the list Built on a Ford F-600 4x4 chassis, this Super C pairs power theater seating with a king bed slide in Franklin, Tennessee.
Class C · Listing mentions “diesel”
- 6
2022 Thor Motor Coach Magnitude XG32
$152,985
Franklin, TN · Nashville RV
Why it made the list Sleeping six with four-wheel drive underneath, the Magnitude XG32 diesel lists at $152,985 and keeps a private rear bedroom for you.
Class C · Listing mentions “diesel”
- 7
2027 Thor Motor Coach Magnitude
$214,979
Cumming, GA · Southern RV
Why it made the list A 6.7L Power Stroke making 950 lb-ft, 500 watts of solar and a 12,000-lb tow rating: off-grid capability, Georgia address.
Class C · Listing mentions “diesel”
- 8
2027 Thor Motor Coach Quantum HS31
$137,995
McDonough, GA · Southern RV
Why it made the list Five or six sleep here, with a skylit cab-over bunk, swiveling 40-inch Smart TV and a bath that splits in two.
Class C · Listing mentions “mpg”
- 9
2027 Thor Motor Coach Scope 18Z
$104,400
Cumming, GA · Southern RV
Why it made the list Mega storage, a middle wet bath and swivel leatherette captain's chairs keep this 18-foot Scope livable without the campground shower house.
Class B · Listing mentions “promaster”
- 10
2021 Dynamax Isata 5 Series
$159,988
Sarasota, FL · Campbell RV
Why it made the list Fewer than 6,000 miles, 14 generator hours and new tires on a 4x4 Xplorer Super C waiting in Sarasota.
Class C · Listing mentions “diesel” and “mpg”
Showing 10 of 62 matching RVs
Browse all matching RVs →Ranked from live dealer inventory on US RV Connection: approved, priced and photographed listings only, refreshed hourly. Asking prices, not sale prices. The browse link applies the closest filters the listings page supports; the ranked list above is the exact rule.