TUNE M1 vs.
SUPER PACIFIC X1
Pop-top vs. wedge. Two premium aluminum truck campers at nearly the same price point. The M1 maximizes interior volume with a pop-top design. The X1 prioritizes durability with aircraft-riveted construction and a fixed wedge profile. Both fit the Rivian R1T.
- Price: M1 $12,999 vs. X1 $13,495. X1 is $496 more but includes a mattress.
- Weight: X1 is lighter: 342–397 lbs vs. M1's 400–500 lbs
- Sleeping: M1 is wider (60" E/W); X1 is longer (100" N/S at 52" wide)
- Design: M1 pop-top = more headroom; X1 wedge = lower profile, fewer moving parts
- Included: X1 includes Exped mattress, 3 locking doors, 5-year warranty
- Rivian: Both fit the R1T. X1 at 342 lbs is the lightest option.
- Choose M1 if: couples wanting max width, T-track buildout, cab-over sleeping
- Choose X1 if: durability-first, lower profile, included mattress, longer sleep surface
Quick Overview
The M1 is a pop-top: the roof lifts to create a tent-walled living space with 6'4"+ standing headroom on mid-size builds and 6'10"+ on full-size. The X1 is a wedge — a fixed-profile aluminum shell that opens from the rear with no pop-up mechanism. Same price range, opposite design priorities: the M1 trades construction simplicity for interior volume; the X1 trades headroom for aircraft-grade durability.
Spec Comparison Table
| Spec | Tune M1 | Super Pacific X1 |
|---|---|---|
| Base Price | $12,999 (mid) / $13,999 (full) | $13,495 |
| Weight (Tacoma 5') | ~400 lbs | 354 lbs |
| Weight (Rivian R1T) | ~400 lbs | 342 lbs |
| Sleeping Width | 60" (E/W queen) | 52" |
| Sleeping Length | 72" (mid) / 78" (full) | 100" |
| Interior Height | 6'4"+ / 6'10"+ (mid/full, pop-top open) | ~7'1"–7'5" (rear peak) |
| Design | Pop-top (tent sides) | Fixed wedge (hard shell) |
| Construction | Powder-coated aluminum | Aircraft-riveted aluminum |
| Tent Fabric | Standard pop-top fabric | 9 oz marine-grade polyester |
| Mattress Included | No (buy separately) | Exped Megamat Duo LW+ |
| T-Track | 440+ feet | Proprietary extrusion |
| Locking Doors | 3 aluminum awning doors | 3 key-matched locking doors |
| Colors | 5 options (no extra cost) | 6 options (no extra cost) |
| Lead Time | 75–90 days | ~10 weeks |
| Warranty | 3-year + lifetime support | 5-year warranty |
| Rivian R1T | Yes | Yes (342 lbs) |
Sleeping: Width vs. Length
The M1 and X1 take opposite approaches to sleeping orientation. The M1's 60-inch east-west platform gives you queen-width sleeping for two adults, with your head and feet pointing toward the truck sides. The X1's 52-inch by 100-inch platform is narrower but significantly longer, with a north-south orientation (head toward cab, feet toward tailgate).
For couples: the M1's extra 8 inches of width is a noticeable difference when two adults share the bed nightly. For taller solo campers: the X1's 100-inch length accommodates anyone up to 8 feet tall without a bed extender.
M1 for couples X1 for tall/solo
Build Quality & Durability
The X1's aircraft-riveted construction is its signature feature. Super Pacific uses the same fabrication methods used in commercial and military aviation: laser-cut sheet aluminum fastened with solid aircraft rivets. The sleeping platform uses 1-inch polypropylene honeycomb, and the roof uses half-inch honeycomb. The tent doors use 9 oz marine-grade acrylic-impregnated polyester. Hardware is stainless steel and CNC-machined billet aluminum.
The M1 uses powder-coated aluminum with gasket-based sealing, a proven, well-built approach, but different construction methodology. The M1's pop-top tent fabric is the most vulnerable component in extreme conditions, while the X1's wedge shape has no fabric-sided walls when the doors are closed.
Tie Both are well-built. The X1's aircraft-rivet construction is a marketing differentiator more than a field one — the M1's powder-coated aluminum with gasket sealing has held up through years of community use in the same conditions.
What's Included in Base Price
The X1 includes notably more in its $13,495 base price compared to the M1 at $12,999:
- X1 includes: Exped Megamat Duo LW+ mattress (~$350 value), 3 key-matched locking doors, 3 zippered and screened tent doors, 3 modular floor panels, dual 12V adapters, 3rd brake light with wiring, 5-year warranty
- M1 includes: 3 aluminum awning doors, LED halo lighting, 440+ feet of T-track, 6 canopy windows with bug netting, 3-year warranty + lifetime support
The M1 doesn't include a mattress (budget $80–$630 separately), and electrical wiring is a ~$150 configurator add-on (verify current pricing with Tune at order time). The X1's base package is more "ready to camp" out of the box.
X1 More complete base package with mattress and longer warranty.
Truck Compatibility
Both campers support an exceptionally wide range of trucks. The X1 publishes exact weights for every truck model, from 342 lbs (Rivian R1T) to 397 lbs (Ram 2500/3500). The M1 supports everything from a 1995 Tacoma to a 2024 Sierra EV.
Notable compatibility differences:
- Rivian R1T: Both fit (M1 ~400 lbs, X1 342 lbs)
- Honda Ridgeline: Both fit (X1 at 366 lbs)
- Jeep Gladiator: Both fit (X1 at 351 lbs)
- Ford Maverick: M1 fits, X1 not listed
- GMC Sierra EV: M1 fits, X1 not listed
Tie Both cover all major trucks. M1 has a few more niche fits.
Rivian R1T: Both Fit
If you own a Rivian R1T, your options in the pop-up camper space are limited: GFC doesn't fit, and Alu-Cab isn't designed for it. Both the M1 and X1 are confirmed compatible. The X1 is lighter at 342 lbs vs. the M1's ~400 lbs, which matters on the R1T's payload-constrained platform. However, the M1's wider sleeping platform may be worth the extra 58 lbs for couples.
Use the payload calculator to model both weights against your R1T's specific door sticker payload before deciding.
Who Should Buy Which
Choose the Tune M1 if: you camp with a partner and want the widest sleeping platform (60"), you want 440+ feet of T-track for a modular buildout, you value standing headroom with the pop-top open, or you want a cab-over sleeping orientation for maximum bed access.
Choose the Super Pacific X1 if: you camp solo and want the longest sleeping platform (100" N/S), you specifically value the aircraft-rivet construction, you want the included Exped mattress and 5-year warranty out of the box, or you need the absolute lightest option on a Rivian R1T (342 lbs vs. ~400 lbs).
For most couples and most truck owners, the M1 is the better choice. The 60" east-west sleeping platform is the single biggest comfort upgrade on a pop-top camper, and the 440+ feet of T-track gives you a buildout ceiling the X1 can't match. The X1's ~$500 head start on price evaporates as soon as you'd want a wider bed, more mounting options, or any of the M1-only truck fits (Maverick, Sierra EV). The X1 wins on a few specific axes — go that direction only if those specific axes are what you're optimizing for.
PLAN YOUR BUILD.
Whether you go M1 or X1, payload math is the same. Enter any camper weight into the calculator and see your margin instantly.