INEOS Grenadier Quartermaster vs Rivian R1T
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2026 Rivian R1T
Overview
| Spec | INEOS Grenadier QuartermasterFieldmaster | Rivian R1TDual Standard |
|---|---|---|
| Selected trim | Fieldmaster | Dual Standard |
| Body style | Truck (Crew Cab) | Truck (Crew Cab) |
| Drivetrain | four wheel drive | all wheel drive |
| Fuel type | premium unleaded (recommended) | electric |
| Transmission | 8-speed shiftable automatic | 1-speed direct drive |
| Engine type | gas | electric |
| Model year | 2026 | 2026 |
Pricing & market
| Spec | INEOS Grenadier QuartermasterFieldmaster | Rivian R1TDual Standard |
|---|---|---|
| MSRP | $84,400 | $70,990 (best) |
| Lowest listing price | — | $47,864 (best) |
| Median listing price | — | $57,200 (best) |
| Highest listing price | — | $69,500 (best) |
| For sale now | 0 | 5 (best) |
Fuel economy & range
| Spec | INEOS Grenadier QuartermasterFieldmaster | Rivian R1TDual Standard |
|---|---|---|
| Combined MPG | 14 MPG (best) | — |
| City MPG | 14 MPG (best) | — |
| Highway MPG | 14 MPG (best) | — |
| Combined MPGe | — | 79 MPGe (best) |
| Electric range | — | 258 mi (best) |
| Battery capacity | — | 106 kWh (best) |
| 240V charge time | — | 9.5 hr (best) |
| Fuel tank | 23.7 gal (best) | — |
Performance
| Spec | INEOS Grenadier QuartermasterFieldmaster | Rivian R1TDual Standard |
|---|---|---|
| Horsepower | 282 hp | 533 hp (best) |
| Torque | 332 lb-ft | 610 lb-ft (best) |
| Engine size | 3 L (best) | — |
| Cylinders | I6 | — |
Size & capability
| Spec | INEOS Grenadier QuartermasterFieldmaster | Rivian R1TDual Standard |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | — | 21.6 cu ft (best) |
| Towing capacity | 7,716 lbs (best) | 7,700 lbs |
| Payload | 1,841 lbs | 1,984 lbs (best) |
| Curb weight | 5,875 lbs (best) | — |
| Wheelbase | 127 in | 135.8 in (best) |
| Length | 212.6 in | 217.1 in (best) |
| Width | 76.5 in | 82 in (best) |
| Height | 79.5 in (best) | 78.2 in |
Safety & recalls
| Spec | INEOS Grenadier QuartermasterFieldmaster | Rivian R1TDual Standard |
|---|---|---|
| Open recalls (YMM scope) | None reported (best) | 1 |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | INEOS Grenadier Quartermaster | Rivian R1T |
|---|---|---|
| 1 | Fieldmaster $84,400 MSRP(Currently comparing) | Dual Standard $70,990 MSRP(Currently comparing) |
| 2 | Trialmaster $84,400 MSRP | Dual $77,990 MSRP |
| 3 | Black Edition $88,395 MSRP | Dual $84,990 MSRP |
| 4 | — | Tri $100,990 MSRP |
| 5 | — | Quad $115,990 MSRP |
| 6 | — | Quad Launch Edition $119,990 MSRP |
Live inventory
Rivian R1T5 for sale
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INEOS Grenadier Quartermaster vs Rivian R1T FAQ
- Which is better: 2026 INEOS Grenadier Quartermaster or 2026 Rivian R1T?
- It depends on priorities. OpenDealer compares 2026 INEOS Grenadier Quartermaster vs 2026 Rivian R1T on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2026 INEOS Grenadier Quartermaster or 2026 Rivian R1T?
- Based on starting MSRP, the 2026 Rivian R1T starts lower at $70,990. Live Rivian R1T listings start at $47,864.
- Which has better startingMsrp: 2026 INEOS Grenadier Quartermaster or 2026 Rivian R1T?
- The 2026 Rivian R1T leads on startingMsrp in this comparison (70,990).
- Which has better combinedMpg: 2026 INEOS Grenadier Quartermaster or 2026 Rivian R1T?
- The 2026 INEOS Grenadier Quartermaster leads on combinedMpg in this comparison (14).
- Which has better electricRangeMi: 2026 INEOS Grenadier Quartermaster or 2026 Rivian R1T?
- The 2026 Rivian R1T leads on electricRangeMi in this comparison (420).
- Which has better horsepower: 2026 INEOS Grenadier Quartermaster or 2026 Rivian R1T?
- The 2026 Rivian R1T leads on horsepower in this comparison (1,025).
- Which has better maxTowingLbs: 2026 INEOS Grenadier Quartermaster or 2026 Rivian R1T?
- The 2026 Rivian R1T leads on maxTowingLbs in this comparison (11,000).